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Inflation adjuster

On blur, bar heights represent nominal dollars, and bar areas represent real dollars. Mousemoves along the date axis normalizes width, forcing height to represent real dollars.

Bar chart based on mbostock/3885304. Box office data from boxofficemojo.com. CPI from inflationdata.com.

year totalgross tickets moviecount screencount avgticketprice avgcost topmovie
2015 6067000000 747200000 332 8.12 Jurassic World
2014 10360600000 1268100000 698 8.17 American Sniper
2013 10923600000 1343600000 687 8.13 Catching Fire
2012 10837400000 1361500000 665 7.96 The Avengers
2011 10174300000 1283000000 602 7.93 Harry Potter / Deathly Hallows (P2)
2010 10565600000 1339100000 536 7.89 Toy Story 3
2009 10595500000 1412700000 521 7.50 Avatar
2008 9630700000 1341300000 608 7.18 The Dark Knight
2007 9663800000 1404600000 631 6.88 Spider-Man 3
2006 9209500000 1406000000 608 6.55 Dead Man's Chest
2005 8840500000 1379200000 547 6.41 Revenge of the Sith
2004 9380500000 1510500000 551 6.21 Shrek 2
2003 9239700000 1532300000 506 6.03 63800000 Return of the King
2002 9155000000 1575700000 479 35592 5.81 58800000 Spider-Man
2001 8412500000 1487300000 482 36764 5.66 47700000 Harry Potter / Sorcerer's Stone
2000 7661000000 1420800000 478 37396 5.39 54800000 The Grinch
1999 7448000000 1465200000 461 37185 5.08 51500000 The Phantom Menace
1998 6949000000 1480700000 509 34186 4.69 52700000 Saving Private Ryan
1997 6365900000 1387700000 510 31640 4.59 53400000 Titanic
1996 5911500000 1338600000 471 29690 4.42 39800000 Independence Day
1995 5493500000 1262600000 411 27805 4.35 36400000 Toy Story
1994 5396200000 1291700000 453 26586 4.18 34300000 Forrest Gump
1993 5154200000 1244000000 462 25737 4.14 29900000 Jurassic Park
1992 4871000000 1173200000 480 25105 4.15 28900000 Aladdin
1991 4803200000 1140600000 458 24570 4.21 26100000 Terminator 2
1990 5021800000 1188600000 410 23689 4.23 26800000 Home Alone
1989 5033400000 1262800000 502 23132 3.97 23500000 Batman
1988 4458400000 1084800000 510 23234 4.11 18100000 Rain Man
1987 4252900000 1088500000 509 23555 3.91 20100000 Three Men and a Baby
1986 3778000000 1017200000 451 22765 3.71 17500000 Top Gun
1985 3749200000 1056100000 470 21147 3.55 16800000 Back to the Future
1984 4031000000 1199000000 536 20200 3.36 14400000 Beverly Hills Cop
1983 3766000000 1197000000 495 18884 3.15 11900000 Return of the Jedi
1982 3453000000 1175000000 428 18020 2.94 11800000 E.T.
1981 2966000000 1067000000 173 18040 2.78 11300000 Raiders / Lost Ark
1980 2749000000 1022000000 161 17590 2.69 9400000 The Empire Strikes Back
year jan feb mar apr may jun jul aug sep oct nov dec average
2015 233.707 234.722 236.119 236.599 237.805 237.805
2014 233.916 234.781 236.293 237.072 237.9 238.343 238.25 237.852 238.031 237.433 236.151 234.812 236.736
2013 230.28 232.166 232.773 232.531 232.945 233.504 233.596 233.877 234.149 233.546 233.069 233.049 232.957
2012 226.665 227.663 229.392 230.085 229.815 229.478 229.104 230.379 231.407 231.317 230.221 229.601 229.594
2011 220.223 221.309 223.467 224.906 225.964 225.722 225.922 226.545 226.889 226.421 226.23 225.672 224.939
2010 216.687 216.741 217.631 218.009 218.178 217.965 218.011 218.312 218.439 218.711 218.803 219.179 218.056
2009 211.143 212.193 212.709 213.24 213.856 215.693 215.351 215.834 215.969 216.177 216.33 215.949 214.537
2008 211.08 211.693 213.528 214.823 216.632 218.815 219.964 219.086 218.783 216.573 212.425 210.228 215.303
2007 202.416 203.499 205.352 206.686 207.949 208.352 208.299 207.917 208.49 208.936 210.177 210.036 207.342
2006 198.3 198.7 199.8 201.5 202.5 202.9 203.5 203.9 202.9 201.8 201.5 201.8 201.6
2005 190.7 191.8 193.3 194.6 194.4 194.5 195.4 196.4 198.8 199.2 197.6 196.8 195.3
2004 185.2 186.2 187.4 188 189.1 189.7 189.4 189.5 189.9 190.9 191 190.3 188.9
2003 181.7 183.1 184.2 183.8 183.5 183.7 183.9 184.6 185.2 185 184.5 184.3 183.96
2002 177.1 177.8 178.8 179.8 179.8 179.9 180.1 180.7 181 181.3 181.3 180.9 179.88
2001 175.1 175.8 176.2 176.9 177.7 178 177.5 177.5 178.3 177.7 177.4 176.7 177.1
2000 168.8 169.8 171.2 171.3 171.5 172.4 172.8 172.8 173.7 174 174.1 174 172.2
1999 164.3 164.5 165 166.2 166.2 166.2 166.7 167.1 167.9 168.2 168.3 168.3 166.6
1998 161.6 161.9 162.2 162.5 162.8 163 163.2 163.4 163.6 164 164 163.9 163
1997 159.1 159.6 160 160.2 160.1 160.3 160.5 160.8 161.2 161.6 161.5 161.3 160.5
1996 154.4 154.9 155.7 156.3 156.6 156.7 157 157.3 157.8 158.3 158.6 158.6 156.9
1995 150.3 150.9 151.4 151.9 152.2 152.5 152.5 152.9 153.2 153.7 153.6 153.5 152.4
1994 146.2 146.7 147.2 147.4 147.5 148 148.4 149 149.4 149.5 149.7 149.7 148.2
1993 142.6 143.1 143.6 144 144.2 144.4 144.4 144.8 145.1 145.7 145.8 145.8 144.5
1992 138.1 138.6 139.3 139.5 139.7 140.2 140.5 140.9 141.3 141.8 142 141.9 140.3
1991 134.6 134.8 135 135.2 135.6 136 136.2 136.6 137.2 137.4 137.8 137.9 136.2
1990 127.4 128 128.7 128.9 129.2 129.9 130.4 131.6 132.7 133.5 133.8 133.8 130.7
1989 121.1 121.6 122.3 123.1 123.8 124.1 124.4 124.6 125 125.6 125.9 126.1 124
1988 115.7 116 116.5 117.1 117.5 118 118.5 119 119.8 120.2 120.3 120.5 118.3
1987 111.2 111.6 112.1 112.7 113.1 113.5 113.8 114.4 115 115.3 115.4 115.4 113.6
1986 109.6 109.3 108.8 108.6 108.9 109.5 109.5 109.7 110.2 110.3 110.4 110.5 109.6
1985 105.5 106 106.4 106.9 107.3 107.6 107.8 108 108.3 108.7 109 109.3 107.6
1984 101.9 102.4 102.6 103.1 103.4 103.7 104.1 104.5 105 105.3 105.3 105.3 103.9
1983 97.8 97.9 97.9 98.6 99.2 99.5 99.9 100.2 100.7 101 101.2 101.3 99.6
1982 94.3 94.6 94.5 94.9 95.8 97 97.5 97.7 97.9 98.2 98 97.6 96.5
1981 87 87.9 88.5 89.1 89.8 90.6 91.6 92.3 93.2 93.4 93.7 94 90.9
1980 77.8 78.9 80.1 81 81.8 82.7 82.7 83.3 84 84.8 85.5 86.3 82.4
1979 68.3 69.1 69.8 70.6 71.5 72.3 73.1 73.8 74.6 75.2 75.9 76.7 72.6
1978 62.5 62.9 63.4 63.9 64.5 65.2 65.7 66 66.5 67.1 67.4 67.7 65.2
1977 58.5 59.1 59.5 60 60.3 60.7 61 61.2 61.4 61.6 61.9 62.1 60.6
1976 55.6 55.8 55.9 56.1 56.5 56.8 57.1 57.4 57.6 57.9 58 58.2 56.9
1975 52.1 52.5 52.7 52.9 53.2 53.6 54.2 54.3 54.6 54.9 55.3 55.5 53.8
1974 46.6 47.2 47.8 48 48.6 49 49.4 50 50.6 51.1 51.5 51.9 49.3
1973 42.6 42.9 43.3 43.6 43.9 44.2 44.3 45.1 45.2 45.6 45.9 46.2 44.4
1972 41.1 41.3 41.4 41.5 41.6 41.7 41.9 42 42.1 42.3 42.4 42.5 41.8
1971 39.8 39.9 40 40.1 40.3 40.6 40.7 40.8 40.8 40.9 40.9 41.1 40.5
1970 37.8 38 38.2 38.5 38.6 38.8 39 39 39.2 39.4 39.6 39.8 38.8
1969 35.6 35.8 36.1 36.3 36.4 36.6 36.8 37 37.1 37.3 37.5 37.7 36.7
1968 34.1 34.2 34.3 34.4 34.5 34.7 34.9 35 35.1 35.3 35.4 35.5 34.8
1967 32.9 32.9 33 33.1 33.2 33.3 33.4 33.5 33.6 33.7 33.8 33.9 33.4
1966 31.8 32 32.1 32.3 32.3 32.4 32.5 32.7 32.7 32.9 32.9 32.9 32.4
1965 31.2 31.2 31.3 31.4 31.4 31.6 31.6 31.6 31.6 31.7 31.7 31.8 31.5
1964 30.9 30.9 30.9 30.9 30.9 31 31.1 31 31.1 31.1 31.2 31.2 31
1963 30.4 30.4 30.5 30.5 30.5 30.6 30.7 30.7 30.7 30.8 30.8 30.9 30.6
1962 30 30.1 30.1 30.2 30.2 30.2 30.3 30.3 30.4 30.4 30.4 30.4 30.2
1961 29.8 29.8 29.8 29.8 29.8 29.8 30 29.9 30 30 30 30 29.9
1960 29.3 29.4 29.4 29.5 29.5 29.6 29.6 29.6 29.6 29.8 29.8 29.8 29.6
1959 29 28.9 28.9 29 29 29.1 29.2 29.2 29.3 29.4 29.4 29.4 29.1
1958 28.6 28.6 28.8 28.9 28.9 28.9 29 28.9 28.9 28.9 29 28.9 28.9
1957 27.6 27.7 27.8 27.9 28 28.1 28.3 28.3 28.3 28.3 28.4 28.4 28.1
1956 26.8 26.8 26.8 26.9 27 27.2 27.4 27.3 27.4 27.5 27.5 27.6 27.2
1955 26.7 26.7 26.7 26.7 26.7 26.7 26.8 26.8 26.9 26.9 26.9 26.8 26.8
1954 26.9 26.9 26.9 26.8 26.9 26.9 26.9 26.9 26.8 26.8 26.8 26.7 26.9
1953 26.6 26.5 26.6 26.6 26.7 26.8 26.8 26.9 26.9 27 26.9 26.9 26.7
1952 26.5 26.3 26.3 26.4 26.4 26.5 26.7 26.7 26.7 26.7 26.7 26.7 26.5
1951 25.4 25.7 25.8 25.8 25.9 25.9 25.9 25.9 26.1 26.2 26.4 26.5 26
1950 23.5 23.5 23.6 23.6 23.7 23.8 24.1 24.3 24.4 24.6 24.7 25 24.1
1949 24 23.8 23.8 23.9 23.8 23.9 23.7 23.8 23.9 23.7 23.8 23.6 23.8
1948 23.7 23.5 23.4 23.8 23.9 24.1 24.4 24.5 24.5 24.4 24.2 24.1 24.1
1947 21.5 21.5 21.9 21.9 21.9 22 22.2 22.5 23 23 23.1 23.4 22.3
1946 18.2 18.1 18.3 18.4 18.5 18.7 19.8 20.2 20.4 20.8 21.3 21.5 19.5
1945 17.8 17.8 17.8 17.8 17.9 18.1 18.1 18.1 18.1 18.1 18.1 18.2 18
1944 17.4 17.4 17.4 17.5 17.5 17.6 17.7 17.7 17.7 17.7 17.7 17.8 17.6
1943 16.9 16.9 17.2 17.4 17.5 17.5 17.4 17.3 17.4 17.4 17.4 17.4 17.3
1942 15.7 15.8 16 16.1 16.3 16.3 16.4 16.5 16.5 16.7 16.8 16.9 16.3
1941 14.1 14.1 14.2 14.3 14.4 14.7 14.7 14.9 15.1 15.3 15.4 15.5 14.7
1940 13.9 14 14 14 14 14.1 14 14 14 14 14 14.1 14
1939 14 13.9 13.9 13.8 13.8 13.8 13.8 13.8 14.1 14 14 14 13.9
1938 14.2 14.1 14.1 14.2 14.1 14.1 14.1 14.1 14.1 14 14 14 14.1
1937 14.1 14.1 14.2 14.3 14.4 14.4 14.5 14.5 14.6 14.6 14.5 14.4 14.4
1936 13.8 13.8 13.7 13.7 13.7 13.8 13.9 14 14 14 14 14 13.9
1935 13.6 13.7 13.7 13.8 13.8 13.7 13.7 13.7 13.7 13.7 13.8 13.8 13.7
1934 13.2 13.3 13.3 13.3 13.3 13.4 13.4 13.4 13.6 13.5 13.5 13.4 13.4
1933 12.9 12.7 12.6 12.6 12.6 12.7 13.1 13.2 13.2 13.2 13.2 13.2 13
1932 14.3 14.1 14 13.9 13.7 13.6 13.6 13.5 13.4 13.3 13.2 13.1 13.7
1931 15.9 15.7 15.6 15.5 15.3 15.1 15.1 15.1 15 14.9 14.7 14.6 15.2
1930 17.1 17 16.9 17 16.9 16.8 16.6 16.5 16.6 16.5 16.4 16.1 16.7
1929 17.1 17.1 17 16.9 17 17.1 17.3 17.3 17.3 17.3 17.3 17.2 17.1
1928 17.3 17.1 17.1 17.1 17.2 17.1 17.1 17.1 17.3 17.2 17.2 17.1 17.1
1927 17.5 17.4 17.3 17.3 17.4 17.6 17.3 17.2 17.3 17.4 17.3 17.3 17.4
1926 17.9 17.9 17.8 17.9 17.8 17.7 17.5 17.4 17.5 17.6 17.7 17.7 17.7
1925 17.3 17.2 17.3 17.2 17.3 17.5 17.7 17.7 17.7 17.7 18 17.9 17.5
1924 17.3 17.2 17.1 17 17 17 17.1 17 17.1 17.2 17.2 17.3 17.1
1923 16.8 16.8 16.8 16.9 16.9 17 17.2 17.1 17.2 17.3 17.3 17.3 17.1
1922 16.9 16.9 16.7 16.7 16.7 16.7 16.8 16.6 16.6 16.7 16.8 16.9 16.8
1921 19 18.4 18.3 18.1 17.7 17.6 17.7 17.7 17.5 17.5 17.4 17.3 17.9
1920 19.3 19.5 19.7 20.3 20.6 20.9 20.8 20.3 20 19.9 19.8 19.4 20
1919 16.5 16.2 16.4 16.7 16.9 16.9 17.4 17.7 17.8 18.1 18.5 18.9 17.3
1918 14 14.1 14 14.2 14.5 14.7 15.1 15.4 15.7 16 16.3 16.5 15.1
1917 11.7 12 12 12.6 12.8 13 12.8 13 13.3 13.5 13.5 13.7 12.8
1916 10.4 10.4 10.5 10.6 10.7 10.8 10.8 10.9 11.1 11.3 11.5 11.6 10.9
1915 10.1 10 9.9 10 10.1 10.1 10.1 10.1 10.1 10.2 10.3 10.3 10.1
1914 10 9.9 9.9 9.8 9.9 9.9 10 10.2 10.2 10.1 10.2 10.1 10
1913 9.8 9.8 9.8 9.8 9.7 9.8 9.9 9.9 10 10 10.1 10 9.9
(function() {
function jetpack(d3) {
d3.selection.prototype.translate = function(xy) {
return this.attr('transform', function(d,i) {
return 'translate('+[typeof xy == 'function' ? xy(d,i) : xy]+')';
});
};
d3.transition.prototype.translate = function(xy) {
return this.attr('transform', function(d,i) {
return 'translate('+[typeof xy == 'function' ? xy(d,i) : xy]+')';
});
};
d3.selection.prototype.tspans = function(lines, lh) {
return this.selectAll('tspan')
.data(lines)
.enter()
.append('tspan')
.text(function(d) { return d; })
.attr('x', 0)
.attr('dy', function(d,i) { return i ? lh || 15 : 0; });
};
d3.selection.prototype.append =
d3.selection.enter.prototype.append = function(name) {
var n = d3_parse_attributes(name), s;
//console.log(name, n);
name = n.attr ? n.tag : name;
name = d3_selection_creator(name);
s = this.select(function() {
return this.appendChild(name.apply(this, arguments));
});
return n.attr ? s.attr(n.attr) : s;
};
d3.selection.prototype.insert =
d3.selection.enter.prototype.insert = function(name, before) {
var n = d3_parse_attributes(name), s;
name = n.attr ? n.tag : name;
name = d3_selection_creator(name);
before = d3_selection_selector(before);
s = this.select(function() {
return this.insertBefore(name.apply(this, arguments), before.apply(this, arguments) || null);
});
return n.attr ? s.attr(n.attr) : s;
};
var d3_parse_attributes_regex = /([\.#])/g;
function d3_parse_attributes(name) {
if (typeof name === "string") {
var attr = {},
parts = name.split(d3_parse_attributes_regex), p;
name = parts.shift();
while ((p = parts.shift())) {
if (p == '.') attr['class'] = attr['class'] ? attr['class'] + ' ' + parts.shift() : parts.shift();
else if (p == '#') attr.id = parts.shift();
}
return attr.id || attr['class'] ? { tag: name, attr: attr } : name;
}
return name;
}
function d3_selection_creator(name) {
return typeof name === "function" ? name : (name = d3.ns.qualify(name)).local ? function() {
return this.ownerDocument.createElementNS(name.space, name.local);
} : function() {
return this.ownerDocument.createElementNS(this.namespaceURI, name);
};
}
function d3_selection_selector(selector) {
return typeof selector === "function" ? selector : function() {
return this.querySelector(selector);
};
}
d3.wordwrap = function(line, maxCharactersPerLine) {
var w = line.split(' '),
lines = [],
words = [],
maxChars = maxCharactersPerLine || 40,
l = 0;
w.forEach(function(d) {
if (l+d.length > maxChars) {
lines.push(words.join(' '));
words.length = 0;
l = 0;
}
l += d.length;
words.push(d);
});
if (words.length) {
lines.push(words.join(' '));
}
return lines;
};
d3.ascendingKey = function(key) {
return typeof key == 'function' ? function (a, b) {
return key(a) < key(b) ? -1 : key(a) > key(b) ? 1 : key(a) >= key(b) ? 0 : NaN;
} : function (a, b) {
return a[key] < b[key] ? -1 : a[key] > b[key] ? 1 : a[key] >= b[key] ? 0 : NaN;
};
};
d3.descendingKey = function(key) {
return typeof key == 'function' ? function (a, b) {
return key(b) < key(a) ? -1 : key(b) > key(a) ? 1 : key(b) >= key(a) ? 0 : NaN;
} : function (a, b) {
return b[key] < a[key] ? -1 : b[key] > a[key] ? 1 : b[key] >= a[key] ? 0 : NaN;
};
};
d3.f = function(){
var functions = arguments;
//convert all string arguments into field accessors
var i = 0, l = functions.length;
while (i < l) {
if (typeof(functions[i]) === 'string' || typeof(functions[i]) === 'number'){
functions[i] = (function(str){ return function(d){ return d[str] }; })(functions[i])
}
i++;
}
//return composition of functions
return function(d) {
var i=0, l = functions.length;
while (i++ < l) d = functions[i-1].call(this, d);
return d;
};
};
// store d3.f as convenient unicode character function (alt-f on macs)
if (!window.hasOwnProperty('ƒ')) window.ƒ = d3.f;
// this tweak allows setting a listener for multiple events, jquery style
var d3_selection_on = d3.selection.prototype.on;
d3.selection.prototype.on = function(type, listener, capture) {
if (typeof type == 'string' && type.indexOf(' ') > -1) {
type = type.split(' ');
for (var i = 0; i<type.length; i++) {
d3_selection_on.apply(this, [type[i], listener, capture]);
}
} else {
d3_selection_on.apply(this, [type, listener, capture]);
}
return this;
};
}
if (typeof d3 === 'object' && d3.version) jetpack(d3);
else if (typeof define === 'function' && define.amd) {
define(['d3'], jetpack);
}
})();
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<!DOCTYPE html>
<meta charset="utf-8">
<style>
svg {
overflow: visible;
}
g {
pointer-events: all;
font: 10px sans-serif;
}
.bar {
fill: steelblue;
}
.bar:hover {
fill: brown;
}
.axis {
font: 10px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.x.axis path {
display: none;
}
</style>
<body>
<script src="d3.min.js"></script>
<script src="d3-jetpack.js"></script>
<script src="http://d3js.org/queue.v1.min.js"></script>
<script>
var margin = {top: 20, right: 20, bottom: 30, left: 85},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var x = d3.time.scale()
.range([0, width]);
var y = d3.scale.linear()
.range([height, 0]);
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(y)
.orient("left")
.ticks(10, "$,");
var svg = d3.select("body").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
svg.append("rect")
.attr('class', 'click-capture')
.style('visibility', 'hidden')
.attr('x', -margin.left)
.attr('y', -margin.top)
.attr('width', width + margin.left + margin.right)
.attr('height', height + margin.top + margin.bottom);
var title = svg.append("text")
.attr("dx", "1em")
.attr("dy", "1em")
.text("Hollywood annual box office grosses, nominal USD");
queue()
.defer(d3.tsv, "boxoffice.tsv", dataType)
.defer(d3.tsv, "cpi.tsv", indexType)
.await(render);
function render(error, data, index) {
if (error) throw error;
data.sort(function(a,b) { return a.year - b.year; });
x.domain(d3.extent(data, function(d) { return d.year; }));
y.domain([0, d3.max(data, function(d) { return d.totalgross; })]);
index = indexer(index);
var maxRatio = d3.max(index.domain().map(function(year) {
var extent = d3.extent(data, ƒ('year'));
return year >= extent[0] && year <= extent[1] ? 1 / index(year) : false;
}));
var inflation = d3.scale.linear()
.range([0, width / data.length])
.domain([0, maxRatio]);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
svg.append("g")
.attr("class", "y axis")
.call(yAxis);
svg.selectAll(".bar")
.data(data)
.enter().append("rect")
.attr("class", "bar")
.attr("x", function(d) { return x(d.year); })
.attr("width", function(d) { return inflation(1 / index(d.year)); })
.attr("y", function(d) { return y(d.totalgross); })
.attr("height", function(d) { return height - y(d.totalgross); });
svg
.on("mousemove", scrub)
.on("touchmove", scrub)
.on("mouseleave", reset)
.on("touchend", reset);
function scrub() {
var date = d3.touch(this)
? x.invert(d3.touch(this))[0]
: x.invert(d3.mouse(this)[0]);
svg.selectAll(".bar")
.transition()
.ease("linear")
.duration(100)
.attr("width", function(d) { return inflation(1 / index(date)); })
.attr("y", function(d) { return y(d.totalgross * (index(date) / index(d.year))); })
.attr("height", function(d) { return height - y(d.totalgross * (index(date) / index(d.year))); })
title.text("Hollywood annual box office grosses, real " + date.getFullYear() + " USD");
}
function reset() {
title.text("Hollywood annual box office grosses, nominal USD");
svg.selectAll(".bar")
.transition()
.attr("width", function(d) { return inflation(1 / index(d.year)); })
.attr("y", function(d) { return y(d.totalgross); })
.attr("height", function(d) { return height - y(d.totalgross); });
}
}
function dataType(d) {
d.year = new Date(d.year);
d.totalgross = +d.totalgross;
return d;
}
function indexType(d) {
d.date = new Date(d.year)
d.average = +d.average;
return d;
}
function indexer(index) {
return d3.scale.linear()
.domain(index.map(ƒ('date')))
.range(index.map(ƒ('average')));
}
</script>
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