stdout

<div>
<style scoped>
    .dataframe tbody tr th:only-of-type {
        vertical-align: middle;
    }

    .dataframe tbody tr th {
        vertical-align: top;
    }

    .dataframe thead th {
        text-align: right;
    }
</style>
<table border="1" class="dataframe">
  <thead>
    <tr style="text-align: right;">
      <th></th>
      <th>COUNTY</th>
      <th>VOTER_NAME</th>
      <th>ID_VOTER</th>
      <th>VOTING_METHOD</th>
      <th>PRECINCT</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <th>0</th>
      <td>ANDERSON</td>
      <td>REILEY, RUTHANNE JEANE</td>
      <td>1214302918</td>
      <td>MAIL-IN</td>
      <td>18</td>
    </tr>
    <tr>
      <th>1</th>
      <td>ANDERSON</td>
      <td>THOMAS, VASSIE CALHOUN</td>
      <td>1041077747</td>
      <td>MAIL-IN</td>
      <td>18</td>
    </tr>
    <tr>
      <th>2</th>
      <td>ANDERSON</td>
      <td>BAKER, JEFFERY</td>
      <td>2192687456</td>
      <td>MAIL-IN</td>
      <td>18</td>
    </tr>
    <tr>
      <th>3</th>
      <td>ANDERSON</td>
      <td>MATTHEWS, JAMES FRANKLIN</td>
      <td>1019077668</td>
      <td>MAIL-IN</td>
      <td>18</td>
    </tr>
    <tr>
      <th>4</th>
      <td>ANDERSON</td>
      <td>HUDSON, PATRICIA YOST</td>
      <td>1040840000</td>
      <td>MAIL-IN</td>
      <td>23</td>
    </tr>
  </tbody>
</table>
</div>

     COUNTY                VOTER_NAME    ID_VOTER VOTING_METHOD PRECINCT
0  ANDERSON    REILEY, RUTHANNE JEANE  1214302918       MAIL-IN       18
1  ANDERSON    THOMAS, VASSIE CALHOUN  1041077747       MAIL-IN       18
2  ANDERSON           BAKER, JEFFERY   2192687456       MAIL-IN       18
3  ANDERSON  MATTHEWS, JAMES FRANKLIN  1019077668       MAIL-IN       18
4  ANDERSON     HUDSON, PATRICIA YOST  1040840000       MAIL-IN       23

VOTING_METHOD
IN-PERSON    896181
MAIL-IN       23317
Name: count, dtype: int64

Now?

What are the most common voting methods?