Bar Chart en d3js - censo 2010

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<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>Censo 2010</title>
  <script src="https://d3js.org/d3.v5.min.js"></script>
</head>
<body>
    <script src="barras.js" type="text/javascript"></script>
</body>
</html>
    

https://d3js.org/d3.v5.min.js