  <th></th>
      <th>mean</th>
      <th>std</th>
      <th>median</th>
      <th>iqr</th>
      <th>mean</th>
      <th>std</th>
      <th>median</th>
      <th>iqr</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <th>duration</th>
      <td>95.559846</td>
      <td>138.374884</td>
      <td>35.000000</td>
      <td>120.000000</td>
      <td>26.227056</td>
      <td>74.828675</td>
      <td>1.000000</td>
      <td>7.000000</td>
    </tr>
    <tr>
      <th>frequency</th>
      <td>55.033356</td>
      <