colgroup>
          <col class="right">
          <col class="right">
        </colgroup>
        <thead>
          <tr>
            <th scope="col" class="right">time</th>
            <th scope="col" class="right">level</th>
          </tr>
        </thead>
        <tbody>
          <tr>
            <td class="right">0</td>
            <td class="right">0</td>
          </tr>
          <tr>
            <td class="right">0.2</td>
            <td class="right">1</td>
          </tr>
          <tr>
          