            <a href="#" onclick="openTab(event, 'overview')">Overview</a>
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            <a href="#" onclick="openTab(event, 'histograms')">Histograms</a>
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            <a href="#" onclick="openTab(event, 'scenarios')">Scenarios</a>
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            <a href="#" onclick="openTab(event, 'cloud')">Cloud</a>
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