<th>category</th>
      <th>mean_scale_score_math</th>
      <th>mean_scale_score_ela</th>
      <th>test_delta</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <th>28254</th>
      <td>03M054</td>
      <td>8</td>
      <td>2014</td>
      <td>Never ELL</td>
      <td>243.764710</td>
      <td>331.356811</td>
      <td>-87.592102</td>
    </tr>
    <tr>
      <th>82041</th>
      <td>07X500</td>
      <td>8</td>
      <td>2014</td>
      <td>Female</td>
      <td>210.500000</td>
      <td>296.057129</td>