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                <h1>Developer Notes</h1>
                <p>The chart control component is a control that allows users to filter the output of any graphs and data tables that are displayed within the page.</p>
<h2 id="general-chart-approach">General Chart Approach</h2>
<p>All ONS charts are based on the <a href="http://www.highcharts.com/">Highcharts</a> library.</p>
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