Line Chart D3 New

<!doctype html>
<html lang="ja">
<head>
  <meta charset="UTF-8">
  <title>Line Chart</title>
<style>
  .axis path,
  .axis line{
    fill: none;
    stroke: black;
  }

.tick text{
    font-size: 12px;
  }

.line{
    fill: none;
    stroke: blue;
    stroke-width: 2px;
  }
</style>
</head>
<body>
<script src="https://d3js.org/d3.v3.js"></script>
<script>

var margin = {top: 20, right: 100, bottom: 30, left: 100},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;

d3.csv("graduates.csv", function(error, data) {
  if (error) throw error;

data.forEach(function(d) {
    d.x = d.Year;
    d.y = +d.Asians;
  });
  
var xScale = d3.scale.linear()
    .domain([1993,2015])
    .range([0, width]);

var yScale = d3.scale.linear()
    .domain([0, d3.max(data, function(d){ return d.y; })])
    .range([height, 0]);

var xAxis = d3.svg.axis().scale(xScale).orient("bottom").tickFormat(d3.format("d"));

var yAxis = d3.svg.axis()
    .scale(yScale)
    .orient("left");

var line = d3.svg.line()
    .x(function(d) { return xScale(d.x); })
    .y(function(d) { return yScale(d.y); });

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("g")
      .attr("class", "x axis")
      .attr("transform", "translate(0," + height + ")")
      .call(xAxis)

svg.append("g")
      .attr("class", "y axis")
      .call(yAxis)

svg.append("path")
      .datum(data)
      .attr("class", "line")
      .attr("d", line(data));
});
</script>
</body>
</html>

Modified http://d3js.org/d3.v3.js to a secure url

https://d3js.org/d3.v3.js