{if is_array($POOLHASHRATES)}
    <div class="tab_content" id="pool">
      <table class="visualize" rel="area">
        <caption>Pool Hashrate</caption>
        <thead>
          <tr>
            <td></td>
{foreach $POOLHASHRATES as $hour=>$hashrate}
            <th scope="col">{$hour|default:"0"}:00</th>
{/foreach}
          </tr>
        </thead>
        <tbody>
          <tr>
            <th scope="row">Pool</th>
{foreach $POOLHASHRATES as $hour=>$hashrate}
            <td>{$hashrate|default:"0"}</td>
{/foreach}
          </tr>
        </tbody>
      </table>
    </div>
{/if}