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CAFE Standards
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| year | car | t2wd | t4wd | truck | |
|---|---|---|---|---|---|
| 1978 | 18.0 | null | null | null | |
| 1979 | 19.0 | 17.2 | 15.8 | 17.2 | |
| 1980 | 20.0 | 16.0 | 14.0 | null | |
| 1981 | 22.0 | 16.7 | 15.0 | null | |
| 1982 | 24.0 | 18.0 | 16.0 | 17.5 | |
| 1983 | 26.0 | 19.5 | 17.5 | 19.0 | |
| 1984 | 27.0 | 20.3 | 18.5 | 20.0 | |
| 1985 | 27.5 | 19.7 | 18.9 | 19.5 | |
| 1986 | 26.0 | 20.5 | 19.5 | 20.0 | |
| 1987 | 26.0 | 21.0 | 19.5 | 20.5 | |
| 1988 | 26.0 | 21.0 | 19.5 | 20.5 | |
| 1989 | 26.5 | 21.5 | 19.0 | 20.5 | |
| 1990 | 27.5 | 20.5 | 19.0 | 20.0 | |
| 1991 | 27.5 | 20.7 | 19.1 | 20.2 | |
| 1992 | 27.5 | null | null | 20.2 | |
| 1993 | 27.5 | null | null | 20.4 | |
| 1994 | 27.5 | null | null | 20.5 | |
| 1995 | 27.5 | null | null | 20.6 | |
| 1996 | 27.5 | null | null | 20.7 | |
| 1997 | 27.5 | null | null | 20.7 | |
| 1998 | 27.5 | null | null | 20.7 | |
| 1999 | 27.5 | null | null | 20.7 | |
| 2000 | 27.5 | null | null | 20.7 | |
| 2001 | 27.5 | null | null | 20.7 | |
| 2002 | 27.5 | null | null | 20.7 | |
| 2003 | 27.5 | null | null | 20.7 | |
| 2004 | 27.5 | null | null | 20.7 | |
| 2005 | 27.5 | null | null | 21.0 | |
| 2006 | 27.5 | null | null | 21.6 | |
| 2007 | 27.5 | null | null | 22.2 | |
| 2008 | 27.5 | null | null | 22.5 | |
| 2009 | 27.5 | null | null | 23.1 | |
| 2010 | 27.5 | null | null | 23.5 | |
| 2011 | 30.2 | null | null | 24.1 | |
| 2012 | 33.3 | null | null | 25.4 | |
| 2013 | 34.2 | null | null | 30.5 | |
| 2014 | 34.9 | null | null | 31.3 | |
| 2015 | 36.2 | null | null | 32.6 | |
| 2016 | 37.8 | null | null | 34.1 | |
| 2017 | 39.4 | null | null | 34.8 | |
| 2018 | 41.4 | null | null | 36.0 | |
| 2019 | 43.3 | null | null | 38.2 | |
| 2020 | 45.1 | null | null | 39.9 | |
| 2021 | 47.1 | null | null | 42.0 | |
| 2022 | 48.1 | null | null | 42.9 | |
| 2023 | 49.6 | null | null | 44.2 | |
| 2024 | 51.3 | null | null | 45.6 | |
| 2025 | 52.1 | null | null | 46.2 |
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| <!DOCTYPE html> | |
| <html xmlns="http://www.w3.org/1999/html"> | |
| <meta charset="utf-8"> | |
| <style> | |
| svg { | |
| font: 10px "Gill Sans", sans-serif; | |
| } | |
| .axis path, .axis line{ | |
| fill:none; | |
| stroke:black; | |
| stroke-width:1px; | |
| } | |
| .dot { | |
| fill:black; | |
| stroke:none; | |
| } | |
| .line { | |
| fill:none; | |
| stroke:black; | |
| } | |
| </style> | |
| <script src="//d3js.org/d3.v3.min.js"></script> | |
| <body> | |
| <script> | |
| var margin = {top: 20, right: 50, bottom: 30, left: 50}, | |
| width = 960 - margin.left - margin.right, | |
| height = 400 - margin.top - margin.bottom; | |
| 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 + ")"); | |
| x = d3.scale.linear().domain([1978, 2025]).range([0, width]); | |
| y = d3.scale.linear().domain([0, 53]).range([height, 0]); | |
| var yf = d3.format("d4"); | |
| var xAxis = d3.svg.axis().scale(x) | |
| .orient("bottom") | |
| .tickSize(4) | |
| .tickFormat(yf); | |
| d3.csv("cafe.csv", function(data) { | |
| data.forEach(function(d) {d.car = +d.car; }); | |
| svg.selectAll("circle") | |
| .data(data) | |
| .enter().append("circle") | |
| .attr("class", "dot") | |
| .attr("cx", function(d) { return x(d.year); }) | |
| .attr("cy", function(d) { return y(d.car);}) | |
| .attr("r", 3); | |
| svg.selectAll("text") | |
| .data(data) | |
| .enter().append("text") | |
| .attr("x", function(d) { return x(d.year); }) | |
| .attr("y", function(d) { return y(d.car+1); }) | |
| .attr("text-anchor", "middle") | |
| .text(function(d) { return d.car; }); | |
| svg.append("g") | |
| .attr("class", "axis") | |
| .attr("transform", "translate(0,"+(height)+")") | |
| .call(xAxis) | |
| //.selectAll("text") | |
| // .attr("text-anchor", "start") | |
| ; | |
| svg.append("line") | |
| .attr("class", "line") | |
| .attr("x1", x(1978)).attr("x2", x(1978)) | |
| .attr("y1", y(0.5)).attr("y2", y(17)); | |
| svg.append("line") | |
| .attr("class", "line") | |
| .attr("x1", x(1985)).attr("x2", x(1985)) | |
| .attr("y1", y(0.5)).attr("y2", y(26.5)); | |
| svg.append("line") | |
| .attr("class", "line") | |
| .attr("x1", x(2025)).attr("x2", x(2025)) | |
| .attr("y1", y(0.5)).attr("y2", y(51.1)); | |
| }); | |
| </script> | |
| <p>Many decorations but no lies. And more data.</p> | |
| <p>Data from <em>The Visual Display of Quantitative Information</em>, p. 59; from <a href="http://en.wikipedia.org/wiki/Corporate_Average_Fuel_Economy#Standards_by_model_year.2C_1978-2011">Wikipedia</a>, and <a href="http://www.nhtsa.gov/fuel-economy">NHTSA</a>.</p> | |
| </body> | |
| </html> |
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