block_bins</th>
      <th>choice_pair</th>
      <th>sample</th>
      <th></th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <th rowspan="5" valign="top">1</th>
      <th rowspan="5" valign="top">1</th>
      <th rowspan="5" valign="top">AB</th>
      <th>1</th>
      <td>0.800000</td>
    </tr>
    <tr>
      <th>2</th>
      <td>0.200000</td>
    </tr>
    <tr>
      <th>3</th>
      <td>0.600000</td>
    </tr>
    <tr>
      <th>4</th>
      <td>0.800000</td>
    </tr>
    <tr>
      <th>5</th>
      <