Boston Marathon Runners Chloropleth by Country 2001-2014

README.md

This map attempts to summarize the countries of origin of Boston Marathon runners from 2001-2014. I was surprised by how global the race is, with runners from 103 different countries over the course of those 13 races.

countrydata.json

{
  "512": {
    "population": 3957000,
    "name": "Oman",
    "three": "OMN"
  },
  "4": {
    "population": 25500100,
    "name": "Afghanistan",
    "three": "AFG"
  },
  "520": {
    "population": 9945,
    "name": "Nauru",
    "three": "NRU"
  },
  "12": {
    "population": 38700000,
    "name": "Algeria",
    "three": "DZA"
  },
  "16": {
    "population": 55519,
    "name": "American Samoa",
    "three": "ASM"
  },
  "20": {
    "population": 76098,
    "name": "Andorra",
    "three": "AND"
  },
  "533": {
    "population": 101484,
    "name": "Aruba",
    "three": "ABW"
  },
  "24": {
    "population": 20609294,
    "name": "Angola",
    "three": "AGO"
  },
  "516": {
    "population": 2113077,
    "name": "Namibia",
    "three": "NAM"
  },
  "540": {
    "population": 258958,
    "name": "New Caledonia",
    "three": "NCL"
  },
  "31": {
    "population": 9477100,
    "name": "Azerbaijan",
    "three": "AZE"
  },
  "32": {
    "population": 41660096,
    "name": "Argentina",
    "three": "ARG"
  },
  "36": {
    "population": 23405803,
    "name": "Australia",
    "three": "AUS"
  },
  "40": {
    "population": 8504850,
    "name": "Austria",
    "three": "AUT"
  },
  "860": {
    "population": 30183400,
    "name": "Uzbekistan",
    "three": "UZB"
  },
  "554": {
    "population": 4516830,
    "name": "New Zealand",
    "three": "NZL"
  },
  "44": {
    "population": 351461,
    "name": "Bahamas",
    "three": "BHS"
  },
  "178": {
    "population": 67514000,
    "name": "Congo",
    "three": "COG"
  },
  "558": {
    "population": 6071045,
    "name": "Nicaragua",
    "three": "NIC"
  },
  "48": {
    "population": 1234571,
    "name": "Bahrain",
    "three": "BHR"
  },
  "8": {
    "population": 2821977,
    "name": "Albania",
    "three": "ALB"
  },
  "50": {
    "population": 152518015,
    "name": "Bangladesh",
    "three": "BGD"
  },
  "51": {
    "population": 3017000,
    "name": "Armenia",
    "three": "ARM"
  },
  "52": {
    "population": 285000,
    "name": "Barbados",
    "three": "BRB"
  },
  "566": {
    "population": 173615000,
    "name": "Nigeria",
    "three": "NGA"
  },
  "56": {
    "population": 11132269,
    "name": "Belgium",
    "three": "BEL"
  },
  "60": {
    "population": 64237,
    "name": "Bermuda",
    "three": "BMU"
  },
  "64": {
    "population": 744910,
    "name": "Bhutan",
    "three": "BTN"
  },
  "608": {
    "population": 99235900,
    "name": "Philippines",
    "three": "PHL"
  },
  "578": {
    "population": 5109056,
    "name": "Norway",
    "three": "NOR"
  },
  "68": {
    "population": 10027254,
    "name": "Bolivia",
    "three": "BOL"
  },
  "70": {
    "population": 3791622,
    "name": "Bosnia And Herzegovina",
    "three": "BIH"
  },
  "583": {
    "population": 101351,
    "name": "Micronesia",
    "three": "FSM"
  },
  "584": {
    "population": 56086,
    "name": "Marshall Islands",
    "three": "MHL"
  },
  "585": {
    "population": 20901,
    "name": "Palau",
    "three": "PLW"
  },
  "586": {
    "population": 185841000,
    "name": "Pakistan",
    "three": "PAK"
  },
  "76": {
    "population": 201032714,
    "name": "Brazil",
    "three": "BRA"
  },
  "591": {
    "population": 3405813,
    "name": "Panama",
    "three": "PAN"
  },
  "84": {
    "population": 349728,
    "name": "Belize",
    "three": "BLZ"
  },
  "598": {
    "population": 7398500,
    "name": "Papua New Guinea",
    "three": "PNG"
  },
  "600": {
    "population": 6783374,
    "name": "Paraguay",
    "three": "PRY"
  },
  "72": {
    "population": 2024904,
    "name": "Botswana",
    "three": "BWA"
  },
  "90": {
    "population": 581344,
    "name": "Solomon Islands",
    "three": "SLB"
  },
  "604": {
    "population": 30475144,
    "name": "Peru",
    "three": "PER"
  },
  "96": {
    "population": 393162,
    "name": "Brunei",
    "three": "BRN"
  },
  "528": {
    "population": 16841100,
    "name": "Netherlands",
    "three": "NLD"
  },
  "100": {
    "population": 7282041,
    "name": "Bulgaria",
    "three": "BGR"
  },
  "616": {
    "population": 38502396,
    "name": "Poland",
    "three": "POL"
  },
  "620": {
    "population": 10487289,
    "name": "Portugal",
    "three": "PRT"
  },
  "174": {
    "population": 743798,
    "name": "Comoros",
    "three": "COM"
  },
  "624": {
    "population": 1704000,
    "name": "Guinea-Bissau",
    "three": "GNB"
  },
  "104": {
    "population": 53259000,
    "name": "Myanmar",
    "three": "MMR"
  },
  "626": {
    "population": 1066409,
    "name": "Timor-Leste",
    "three": "TLS"
  },
  "116": {
    "population": 15135000,
    "name": "Cambodia",
    "three": "KHM"
  },
  "630": {
    "population": 3615086,
    "name": "Puerto Rico",
    "three": "PRI"
  },
  "120": {
    "population": 20386799,
    "name": "Cameroon",
    "three": "CMR"
  },
  "276": {
    "population": 80619000,
    "name": "Germany",
    "three": "DEU"
  },
  "634": {
    "population": 2045239,
    "name": "Qatar",
    "three": "QAT"
  },
  "191": {
    "population": 4290612,
    "name": "Croatia",
    "three": "HRV"
  },
  "124": {
    "population": 35295770,
    "name": "Canada",
    "three": "CAN"
  },
  "704": {
    "population": 89708900,
    "name": "Vietnam",
    "three": "VNM"
  },
  "642": {
    "population": 20121641,
    "name": "Romania",
    "three": "ROU"
  },
  "643": {
    "population": 143700000,
    "name": "Russia",
    "three": "RUS"
  },
  "132": {
    "population": 491875,
    "name": "Cape Verde",
    "three": "CPV"
  },
  "646": {
    "population": 10537222,
    "name": "Rwanda",
    "three": "RWA"
  },
  "705": {
    "population": 2061875,
    "name": "Slovenia",
    "three": "SVN"
  },
  "136": {
    "population": 55456,
    "name": "Cayman Islands",
    "three": "CYM"
  },
  "108": {
    "population": 10163000,
    "name": "Burundi",
    "three": "BDI"
  },
  "140": {
    "population": 4616000,
    "name": "Central African Republic",
    "three": "CAF"
  },
  "144": {
    "population": 20277597,
    "name": "Sri Lanka",
    "three": "LKA"
  },
  "659": {
    "population": 54000,
    "name": "Saint Kitts And Nevis",
    "three": "KNA"
  },
  "148": {
    "population": 12825000,
    "name": "Chad",
    "three": "TCD"
  },
  "662": {
    "population": 180000,
    "name": "Saint Lucia",
    "three": "LCA"
  },
  "152": {
    "population": 16341929,
    "name": "Chile",
    "three": "CHL"
  },
  "156": {
    "population": 1360720000,
    "name": "China",
    "three": "CHN"
  },
  "670": {
    "population": 109000,
    "name": "Saint Vincent And The Grenadines",
    "three": "VCT"
  },
  "112": {
    "population": 9468100,
    "name": "Belarus",
    "three": "BLR"
  },
  "674": {
    "population": 33540,
    "name": "San Marino",
    "three": "SMR"
  },
  "678": {
    "population": 187356,
    "name": "S\u00e3o Tom\u00e9 And Pr\u00edncipe",
    "three": "STP"
  },
  "28": {
    "population": 86295,
    "name": "Antigua And Barbuda",
    "three": "ATG"
  },
  "682": {
    "population": 29994272,
    "name": "Saudi Arabia",
    "three": "SAU"
  },
  "686": {
    "population": 13567338,
    "name": "Senegal",
    "three": "SEN"
  },
  "175": {
    "population": 212645,
    "name": "Mayotte",
    "three": "MYT"
  },
  "688": {
    "population": 7181505,
    "name": "Serbia",
    "three": "SRB"
  },
  "690": {
    "population": 90945,
    "name": "Seychelles",
    "three": "SYC"
  },
  "180": {
    "population": 4448000,
    "name": "Republic Of The Congo",
    "three": "COD"
  },
  "694": {
    "population": 6190280,
    "name": "Sierra Leone",
    "three": "SLE"
  },
  "184": {
    "population": 14974,
    "name": "Cook Islands",
    "three": "COK"
  },
  "188": {
    "population": 4667096,
    "name": "Costa Rica",
    "three": "CRI"
  },
  "702": {
    "population": 5399200,
    "name": "Singapore",
    "three": "SGP"
  },
  "703": {
    "population": 5415459,
    "name": "Slovakia",
    "three": "SVK"
  },
  "192": {
    "population": 11167325,
    "name": "Cuba",
    "three": "CUB"
  },
  "800": {
    "population": 35357000,
    "name": "Uganda",
    "three": "UGA"
  },
  "706": {
    "population": 10496000,
    "name": "Somalia",
    "three": "SOM"
  },
  "196": {
    "population": 865878,
    "name": "Cyprus",
    "three": "CYP"
  },
  "710": {
    "population": 52981991,
    "name": "South Africa",
    "three": "ZAF"
  },
  "716": {
    "population": 12973808,
    "name": "Zimbabwe",
    "three": "ZWE"
  },
  "203": {
    "population": 10513800,
    "name": "Czech Republic",
    "three": "CZE"
  },
  "204": {
    "population": 10323000,
    "name": "Benin",
    "three": "BEN"
  },
  "208": {
    "population": 5627235,
    "name": "Denmark",
    "three": "DNK"
  },
  "212": {
    "population": 71293,
    "name": "Dominica",
    "three": "DMA"
  },
  "214": {
    "population": 9445281,
    "name": "Dominican Republic",
    "three": "DOM"
  },
  "292": {
    "population": 30001,
    "name": "Gibraltar",
    "three": "GIB"
  },
  "218": {
    "population": 15693600,
    "name": "Ecuador",
    "three": "ECU"
  },
  "732": {
    "population": 567000,
    "name": "Western Sahara",
    "three": "ESH"
  },
  "222": {
    "population": 6340000,
    "name": "El Salvador",
    "three": "SLV"
  },
  "728": {
    "population": 37964000,
    "name": "Sudan",
    "three": "SDN"
  },
  "729": {
    "population": 37964000,
    "name": "Sudan",
    "three": "SDN"
  },
  "226": {
    "population": 1622000,
    "name": "Equatorial Guinea",
    "three": "GNQ"
  },
  "740": {
    "population": 534189,
    "name": "Suriname",
    "three": "SUR"
  },
  "231": {
    "population": 86613986,
    "name": "Ethiopia",
    "three": "ETH"
  },
  "232": {
    "population": 6333000,
    "name": "Eritrea",
    "three": "ERI"
  },
  "233": {
    "population": 1311870,
    "name": "Estonia",
    "three": "EST"
  },
  "234": {
    "population": 48244,
    "name": "Faroe Islands",
    "three": "FRO"
  },
  "748": {
    "population": 1250000,
    "name": "Swaziland",
    "three": "SWZ"
  },
  "752": {
    "population": 9651531,
    "name": "Sweden",
    "three": "SWE"
  },
  "242": {
    "population": 858038,
    "name": "Fiji",
    "three": "FJI"
  },
  "756": {
    "population": 8112200,
    "name": "Switzerland",
    "three": "CHE"
  },
  "894": {
    "population": 14580290,
    "name": "Zambia",
    "three": "ZMB"
  },
  "246": {
    "population": 5452821,
    "name": "Finland",
    "three": "FIN"
  },
  "760": {
    "population": 21898000,
    "name": "Syria",
    "three": "SYR"
  },
  "724": {
    "population": 46609700,
    "name": "Spain",
    "three": "ESP"
  },
  "250": {
    "population": 65844000,
    "name": "France",
    "three": "FRA"
  },
  "764": {
    "population": 65926261,
    "name": "Thailand",
    "three": "THA"
  },
  "254": {
    "population": 237549,
    "name": "French Guiana",
    "three": "GUF"
  },
  "768": {
    "population": 6191155,
    "name": "Togo",
    "three": "TGO"
  },
  "258": {
    "population": 268270,
    "name": "French Polynesia",
    "three": "PYF"
  },
  "262": {
    "population": 873000,
    "name": "Djibouti",
    "three": "DJI"
  },
  "776": {
    "population": 103036,
    "name": "Tonga",
    "three": "TON"
  },
  "266": {
    "population": 1672000,
    "name": "Gabon",
    "three": "GAB"
  },
  "268": {
    "population": 4483800,
    "name": "Georgia",
    "three": "GEO"
  },
  "270": {
    "population": 1849000,
    "name": "Gambia",
    "three": "GMB"
  },
  "784": {
    "population": 8264070,
    "name": "United Arab Emirates",
    "three": "ARE"
  },
  "275": {
    "population": 4420549,
    "name": "Palestine",
    "three": "PSE"
  },
  "788": {
    "population": 10886500,
    "name": "Tunisia",
    "three": "TUN"
  },
  "792": {
    "population": 76667864,
    "name": "Turkey",
    "three": "TUR"
  },
  "795": {
    "population": 5240000,
    "name": "Turkmenistan",
    "three": "TKM"
  },
  "796": {
    "population": 31458,
    "name": "Turks And Caicos Islands",
    "three": "TCA"
  },
  "798": {
    "population": 11323,
    "name": "Tuvalu",
    "three": "TUV"
  },
  "288": {
    "population": 24658823,
    "name": "Ghana",
    "three": "GHA"
  },
  "804": {
    "population": 45426200,
    "name": "Ukraine",
    "three": "UKR"
  },
  "807": {
    "population": 2062294,
    "name": "Macedonia",
    "three": "MKD"
  },
  "296": {
    "population": 106461,
    "name": "Kiribati",
    "three": "KIR"
  },
  "300": {
    "population": 10815197,
    "name": "Greece",
    "three": "GRC"
  },
  "562": {
    "population": 17129076,
    "name": "Niger",
    "three": "NER"
  },
  "304": {
    "population": 56483,
    "name": "Greenland",
    "three": "GRL"
  },
  "818": {
    "population": 86082100,
    "name": "Egypt",
    "three": "EGY"
  },
  "308": {
    "population": 103328,
    "name": "Grenada",
    "three": "GRD"
  },
  "312": {
    "population": 405739,
    "name": "Guadeloupe",
    "three": "GLP"
  },
  "826": {
    "population": 63705000,
    "name": "United Kingdom",
    "three": "GBR"
  },
  "316": {
    "population": 159358,
    "name": "Guam",
    "three": "GUM"
  },
  "831": {
    "population": 63085,
    "name": "Guernsey",
    "three": "GGY"
  },
  "832": {
    "population": 99000,
    "name": "Jersey",
    "three": "JEY"
  },
  "833": {
    "population": 84497,
    "name": "Isle Of Man",
    "three": "IMN"
  },
  "834": {
    "population": 44928923,
    "name": "Tanzania",
    "three": "TZA"
  },
  "324": {
    "population": 10824200,
    "name": "Guinea",
    "three": "GIN"
  },
  "840": {
    "population": 317660000,
    "name": "United States",
    "three": "USA"
  },
  "332": {
    "population": 10413211,
    "name": "Haiti",
    "three": "HTI"
  },
  "850": {
    "population": 106405,
    "name": "United States Virgin Islands",
    "three": "VIR"
  },
  "340": {
    "population": 8555072,
    "name": "Honduras",
    "three": "HND"
  },
  "854": {
    "population": 17322796,
    "name": "Burkina Faso",
    "three": "BFA"
  },
  "344": {
    "population": 7184000,
    "name": "Hong Kong",
    "three": "HKG"
  },
  "858": {
    "population": 3286314,
    "name": "Uruguay",
    "three": "URY"
  },
  "348": {
    "population": 9906000,
    "name": "Hungary",
    "three": "HUN"
  },
  "862": {
    "population": 28946101,
    "name": "Venezuela",
    "three": "VEN"
  },
  "352": {
    "population": 325671,
    "name": "Iceland",
    "three": "ISL"
  },
  "356": {
    "population": 1241270000,
    "name": "India",
    "three": "IND"
  },
  "360": {
    "population": 249866000,
    "name": "Indonesia",
    "three": "IDN"
  },
  "364": {
    "population": 77269000,
    "name": "Iran",
    "three": "IRN"
  },
  "368": {
    "population": 34035000,
    "name": "Iraq",
    "three": "IRQ"
  },
  "882": {
    "population": 187820,
    "name": "Samoa",
    "three": "WSM"
  },
  "372": {
    "population": 4593100,
    "name": "Ireland",
    "three": "IRL"
  },
  "887": {
    "population": 25235000,
    "name": "Yemen",
    "three": "YEM"
  },
  "376": {
    "population": 8146300,
    "name": "Israel",
    "three": "ISR"
  },
  "660": {
    "population": 13452,
    "name": "Anguilla",
    "three": "AIA"
  },
  "380": {
    "population": 59943933,
    "name": "Italy",
    "three": "ITA"
  },
  "524": {
    "population": 26494504,
    "name": "Nepal",
    "three": "NPL"
  },
  "384": {
    "population": 23202000,
    "name": "Ivory Coast",
    "three": "CIV"
  },
  "320": {
    "population": 15438384,
    "name": "Guatemala",
    "three": "GTM"
  },
  "388": {
    "population": 2711476,
    "name": "Jamaica",
    "three": "JAM"
  },
  "780": {
    "population": 1328019,
    "name": "Trinidad And Tobago",
    "three": "TTO"
  },
  "392": {
    "population": 127180000,
    "name": "Japan",
    "three": "JPN"
  },
  "548": {
    "population": 264652,
    "name": "Vanuatu",
    "three": "VUT"
  },
  "398": {
    "population": 17186000,
    "name": "Kazakhstan",
    "three": "KAZ"
  },
  "400": {
    "population": 6555800,
    "name": "Jordan",
    "three": "JOR"
  },
  "404": {
    "population": 44354000,
    "name": "Kenya",
    "three": "KEN"
  },
  "408": {
    "population": 50219669,
    "name": "South Korea",
    "three": "PRK"
  },
  "580": {
    "population": 53883,
    "name": "Northern Mariana Islands",
    "three": "MNP"
  },
  "410": {
    "population": 24895000,
    "name": "North Korea",
    "three": "KOR"
  },
  "414": {
    "population": 3065850,
    "name": "Kuwait",
    "three": "KWT"
  },
  "417": {
    "population": 5663133,
    "name": "Kyrgyzstan",
    "three": "KGZ"
  },
  "418": {
    "population": 6580800,
    "name": "Laos",
    "three": "LAO"
  },
  "422": {
    "population": 4822000,
    "name": "Lebanon",
    "three": "LBN"
  },
  "426": {
    "population": 2074000,
    "name": "Lesotho",
    "three": "LSO"
  },
  "428": {
    "population": 2005200,
    "name": "Latvia",
    "three": "LVA"
  },
  "430": {
    "population": 4294000,
    "name": "Liberia",
    "three": "LBR"
  },
  "328": {
    "population": 784894,
    "name": "Guyana",
    "three": "GUY"
  },
  "434": {
    "population": 6202000,
    "name": "Libya",
    "three": "LBY"
  },
  "158": {
    "population": 23377515,
    "name": "Taiwan",
    "three": "TWN"
  },
  "438": {
    "population": 36942,
    "name": "Liechtenstein",
    "three": "LIE"
  },
  "440": {
    "population": 2941953,
    "name": "Lithuania",
    "three": "LTU"
  },
  "442": {
    "population": 537000,
    "name": "Luxembourg",
    "three": "LUX"
  },
  "450": {
    "population": 21263403,
    "name": "Madagascar",
    "three": "MDG"
  },
  "454": {
    "population": 16363000,
    "name": "Malawi",
    "three": "MWI"
  },
  "458": {
    "population": 30030000,
    "name": "Malaysia",
    "three": "MYS"
  },
  "462": {
    "population": 317280,
    "name": "Maldives",
    "three": "MDV"
  },
  "466": {
    "population": 15302000,
    "name": "Mali",
    "three": "MLI"
  },
  "470": {
    "population": 416055,
    "name": "Malta",
    "three": "MLT"
  },
  "474": {
    "population": 392291,
    "name": "Martinique",
    "three": "MTQ"
  },
  "762": {
    "population": 8160000,
    "name": "Tajikistan",
    "three": "TJK"
  },
  "478": {
    "population": 3461041,
    "name": "Mauritania",
    "three": "MRT"
  },
  "480": {
    "population": 1257900,
    "name": "Mauritius",
    "three": "MUS"
  },
  "484": {
    "population": 118395054,
    "name": "Mexico",
    "three": "MEX"
  },
  "492": {
    "population": 36136,
    "name": "Monaco",
    "three": "MCO"
  },
  "496": {
    "population": 2931300,
    "name": "Mongolia",
    "three": "MNG"
  },
  "498": {
    "population": 3559500,
    "name": "Moldova",
    "three": "MDA"
  },
  "499": {
    "population": 620029,
    "name": "Montenegro",
    "three": "MNE"
  },
  "504": {
    "population": 33194500,
    "name": "Morocco",
    "three": "MAR"
  },
  "508": {
    "population": 23700715,
    "name": "Mozambique",
    "three": "MOZ"
  },
  "170": {
    "population": 47494000,
    "name": "Colombia",
    "three": "COL"
  }
}

index.html

<html><head><title>Runner Chloropleth</title>
<!DOCTYPE html>
<meta charset="utf-8">
<style>
.q0-9 { fill:rgb(247,251,255); }
.q1-9 { fill:rgb(222,235,247); }
.q2-9 { fill:rgb(198,219,239); }
.q3-9 { fill:rgb(158,202,225); }
.q4-9 { fill:rgb(107,174,214); }
.q5-9 { fill:rgb(66,146,198); }
.q6-9 { fill:rgb(33,113,181); }
.q7-9 { fill:rgb(8,81,156); }
.q8-9 { fill:rgb(8,48,107); }
.qNaN-9 { fill:rgb(247,251,255); }

.countries {
  fill: none;
  stroke: #fff;
  stroke-linejoin: round;
}

#tooltip {
  position: absolute;
  width: 150px;
  height: auto;
  padding: 10px;
  background-color: white;
  -webkit-border-radius: 10px;
  -moz-border-radius: 10px;
  border-radius: 10px;
  -webkit-box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.4);
  -moz-box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.4);
  box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.4);
  pointer-events: none;
}

#tooltip.hidden {
  display: none;
}

#tooltip p {
  margin: 0;
  font-family: sans-serif;
  font-size: 16px;
  line-height: 20px;
}
</style>
<body>
<div id="tooltip" class="hidden">
  <p><strong id="heading"></strong></p>
  <p><span id="runners"></span></p>
  <p><span id="per1m"></span></p>
</div>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script src="http://d3js.org/queue.v1.min.js"></script>
<script src="http://d3js.org/topojson.v1.min.js"></script>
<script src="http://d3js.org/d3.geo.projection.v0.min.js" charset="utf-8"></script>
<script>
countries = {"LIE": 1, "EGY": 3, "LBY": 2, "QAT": 4, "PRY": 2, "BOL": 3, "SGP": 98,
             "PAN": 17, "PRK": 1, "TZA": 2, "ARE": 34, "HKG": 211, "HTI": 2, "TPE": 19,
             "SVK": 29, "CHL": 172, "MYS": 14, "CHN": 79, "URY": 16, "JAM": 8, "CHE": 474,
             "ZWE": 5, "FIN": 99, "THA": 3, "PHL": 13, "MAR": 8, "AHO": 4, "LVA": 7,
             "KAZ": 1, "GTM": 57, "BEL": 220, "CRI": 142, "SAU": 7, "DNK": 312, "BMU": 191,
             "CMR": 5, "DEU": 1778, "ROU": 7, "MNE": 1, "ROU": 2, "TCA": 1, "TTO": 11,
             "VGB": 3, "BLR": 2, "GRC": 103, "AGO": 1, "MCO": 1, "IND": 17, "IDN": 1,
             "NOR": 86, "CZE": 30, "SLV": 17, "DOM": 31, "LUX": 19, "ISR": 44, "NLD": 286,
             "PER": 68, "ISL": 154, "ETH": 63, "COL": 151, "NPL": 1, "SRB": 1, "ECU": 89,
             "FRA": 707, "LTU": 8, "TWN": 7, "AUS": 639, "GBR": 1837, "AUT": 165, "VEN": 145,
             "KEN": 145, "TUR": 12, "ITA": 1168, "BRN": 1, "TUN": 1, "RUS": 92, "MEX": 1414,
             "BRA": 481, "CYM": 21, "BRB": 3, "NGA": 1, "USA": 240937, "SWE": 222, "UKR": 9,
             "CAN": 23070, "KOR": 1489, "BHS": 20, "CYP": 1, "PRT": 93, "HRV": 6, "POL": 109,
             "EST": 11, "ESP": 384, "SVN": 33, "IRL": 705, "MLT": 1, "NZL": 147, "ABW": 3,
             "JPN": 1351, "ZAF": 100, "ARM": 2, "ARG": 96, "HUN": 24}

var width = 960,
    height = 600;

var projection = d3.geo.eckert3()
    .scale(205)
    .translate([width / 2 - 40, height / 2])
    .precision(.1);

var path = d3.geo.path()
    .projection(projection);

var pad = d3.format("02d");
var f2 = d3.format(".2f");

var svg = d3.select("body").append("svg")
    .attr("width", width)
    .attr("height", height);

queue()
    .defer(d3.json, "world.json")
    .defer(d3.json, "countrydata.json")
    .await(ready);

function ready(error, world, countrydata) {
  if (error != undefined) {
    console.log("error in data: ", error);
    return;
  }

  function percapita(d) { return countries[d.three] / d.population; }
  var runnerpop = d3.values(countrydata).map(percapita);
  var maxvalue = d3.max(runnerpop);
  var minvalue = d3.min(runnerpop);

  var logscale = d3.scale.log().domain([minvalue,maxvalue]).rangeRound([0,8]);

  function quantize(i) {
    return "q" + logscale(i) + "-9";
  }

  function colorize(d) {
    var country = countrydata[d.id];
    if (country == undefined) {
      return "q1-9";
    }
    var percapita = countries[country.three] / country.population;
    return quantize(percapita);
  }

  //DELETEME
  w = world;
  svg.append("g")
    .attr("class", "countries")
  .selectAll("path")
    .data(topojson.feature(world, world.objects.countries).features)
  .enter().append("path")
    .attr("id", function(d) { return d.id; })
    .attr("class", colorize)
    .attr("d", path)
  .on("mousemove", mousemove)
  .on("mouseout", mouseout);

  // http://bl.ocks.org/tgk/6044254
  function mousemove(d) {
    var xPosition = d3.event.pageX + 5;
    var yPosition = d3.event.pageY + 5;

    d3.select("#tooltip")
      .style("left", xPosition + "px")
      .style("top", yPosition + "px");

    var id = d.id;
    var country = countrydata[id];
    if (country == undefined) {
      return;
    }
    var name = country.name;

    var runners = countries[country.three] || 0;
    var per1m = f2((runners / country.population) * 1000000)

    d3.select("#tooltip #heading")
      .text(name);
    d3.select("#tooltip #runners")
      .text("runners: " + runners);
    d3.select("#tooltip #per1m")
      .text("per million: " + per1m);
    d3.select("#tooltip").classed("hidden", false);
  };

  function mouseout() {
    d3.select("#tooltip").classed("hidden", true);
  };
}

d3.select(self.frameElement).style("height", height + "px");
</script>
</body>

world.json