Basic Bar Chart

<!DOCTYPE html>
<meta charset="utf-8">
<head>
<style>

.bar {
  fill: #9bd2ce;
}

.bar:hover {
  fill: #49ada6;
}

.axis {
  font: 8px sans-serif;
}

.axis path,
.axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}

.x.axis path {
  display: none;
}

</style>
</head>
<body>
<script src="https://d3js.org/d3.v3.min.js"></script>
<script>

var margin = {top: 10, right: 10, bottom: 15, left: 20},
    width = 380 - margin.left - margin.right,
    height = 80 - margin.top - margin.bottom;

var x = d3.scale.ordinal()
    .rangeRoundBands([0, width], .1);

var y = d3.scale.linear()
    .range([height, 0]);

var xAxis = d3.svg.axis()
    .scale(x)
    .orient("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 + ")");

d3.csv("data.csv", type, function(error, data) {
  x.domain(data.map(function(d) { return d.max; }));
  y.domain([0, d3.max(data, function(d) { return d.freq; })]);

var fullSet = data.map(function(d) { return d.max; });
 
  xAxis.tickValues([fullSet[1], fullSet[7], fullSet[13], fullSet[19]]);

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

svg.selectAll(".bar")
      .data(data)
    .enter().append("rect")
      .attr("class", "bar")
      .attr("x", function(d) { return x(d.max); })
      .attr("width", x.rangeBand())
      .attr("y", function(d) { return y(d.freq); })
      .attr("height", function(d) { return height - y(d.freq); });
});

function type(d) {
  d.freq = +d.freq;
  return d;
}

</script>
</body>

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

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