<tfoot>
The block of rows summarizing the table: totals, averages.
Baseline: Widely available · Tables
When to use it
After tbody, for totals rows; repeats at the bottom of printed pages.
When not to
The summary row's label cell is a th scope='row' like any other.
Example
<tfoot>
<tr><th scope='row'>Total</th><td>131</td></tr>
</tfoot>