Completed Code for Visualizing the Data with Google Chart Treemap

<!DOCTYPE html>
<meta charset="UTF-8">

  <h2>Treemap of Top 50 Baby Girl Names and Top 50 Baby Boy Names in 2014</h2>
  <div id='map'></div>

<script type="text/javascript" src="data2014.js"></script>
<script type="text/javascript" src=""></script>
<script type="text/javascript">
  google.charts.load('current', {'packages':['treemap']});

  function drawChart() {
    var data = new google.visualization.DataTable();
    data.addColumn('string', 'Node ID');
    data.addColumn('string', 'Parent');
    data.addColumn('number', 'Number of Names');


    var tree = new google.visualization.TreeMap(document.getElementById('map'));

    var options = {
      minColor: '#ffe6e6',
      midColor: '#ff4d4d',
      maxColor: '#b30000',
      showScale: true,
      height: 500,
      highlightOnMouseOver: true,

    tree.draw(data, options);