Stacked Bar Chart

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#menu {
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select {
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<h1>U.S. International Trade in Goods, 2000-2013</h1>
<p>Value of Exports and Imports by 3-digit NAICS Code ($US Billions)</p>
<select id="menu" onchange="makeBars()">
        <option selected value="000">Total</option>
        <option value="111">Agricultural Products</option>
        <option value="112">Livestock & Livestock Products</option>
        <option value="113">Forestry Products</option>
        <option value="114">Fish, Fresh/Chilled/Frozen & Other Marine Products</option>
        <option value="211">Oil & Gas</option>
        <option value="212">Minerals & Ores</option>
        <option value="311">Food & Kindred Products</option>
        <option value="312">Beverages & Tobacco Products</option>
        <option value="313">Textiles & Fabrics</option>
        <option value="314">Textile Mill Products</option>
        <option value="315">Apparel & Accessories</option>
        <option value="316">Leather & Allied Products</option>
        <option value="321">Wood Products</option>
        <option value="322">Paper</option>
        <option value="323">Printed Matter And Related Products</option>
        <option value="324">Petroleum & Coal Products</option>
        <option value="325">Chemicals</option>
        <option value="326">Plastics & Rubber Products</option>
        <option value="327">Nonmetallic Mineral Products</option>
        <option value="331">Primary Metal Mfg</option>
        <option value="332">Fabricated Metal Products</option>
        <option value="333">Machinery, Except Electrical</option>
        <option value="334">Computer & Electronic Products</option>
        <option value="335">Electrical Equipment, Appliances & Components</option>
        <option value="336">Transportation Equipment</option>
        <option value="337">Furniture & Fixtures</option>
        <option value="339">Miscellaneous Manufactured Commodities</option>
        <option value="511">Newspapers, Books & Other Published Matter</option>
        <option value="910">Waste And Scrap</option>
        <option value="920">Used Or Second-Hand Merchandise</option>
        <option value="980">Goods Returned (Exports For Canada Only)</option>
        <option value="990">Special Classification Provisions</option>
</select>
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<p>Source: U.S. Census Bureau.</p>
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