Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
1976 Azorean regional election
Table title:
Summary of votes and seats
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=2 rowspan=2 > Parties </th><th colspan=1 rowspan=2 > Votes </th><th colspan=1 rowspan=2 > % </th><th colspan=2 rowspan=1 > Seats </th></tr>
<tr> <th colspan=1 rowspan=1 > 1976 </th></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > Social Democratic </td><td colspan=1 rowspan=1 > 59,114 </td><td colspan=1 rowspan=1 > 53.83 </td><td colspan=1 rowspan=1 > 27 </td><td colspan=1 rowspan=1 > 62.79 </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Socialist </td><td colspan=1 rowspan=1 > 36,049 </td><td colspan=1 rowspan=1 > 32.82 </td><td colspan=1 rowspan=1 > 14 </td><td colspan=1 rowspan=1 > 32.56 </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Democratic and Social Centre </td><td colspan=1 rowspan=1 > 8,291 </td><td colspan=1 rowspan=1 > 7.55 </td><td colspan=1 rowspan=1 > 2 </td><td colspan=1 rowspan=1 > 4.65 </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Communist </td><td colspan=1 rowspan=1 > 2,387 </td><td colspan=1 rowspan=1 > 2.17 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0.00 </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Portuguese Workers' Communist </td><td colspan=1 rowspan=1 > 638 </td><td colspan=1 rowspan=1 > 0.58 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0.00 </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Movement of Socialist Left </td><td colspan=1 rowspan=1 > 167 </td><td colspan=1 rowspan=1 > 0.15 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0.00 </td></tr>
<tr> <td colspan=2 rowspan=1 > Total valid </td><td colspan=1 rowspan=1 > 106,646 </td><td colspan=1 rowspan=1 > 97.10 </td><td colspan=1 rowspan=1 > 43 </td><td colspan=1 rowspan=1 > 100.00 </td></tr>
<tr> <td colspan=2 rowspan=1 > Blank ballots </td><td colspan=1 rowspan=1 > 1,304 </td><td colspan=1 rowspan=1 > 1.19 </td><td colspan=2 rowspan=3 >  </td></tr>
<tr> <td colspan=2 rowspan=1 > Invalid ballots </td><td colspan=1 rowspan=1 > 1,876 </td><td colspan=1 rowspan=1 > 1.71 </td></tr>
<tr> <td class="highlighted"  colspan=2 rowspan=1 > Total (turnout 67.51%) </td><td colspan=1 rowspan=1 > 109,826 </td><td colspan=1 rowspan=1 > 100.00 </td></tr>
<tr> <td colspan=6 rowspan=1 > Source: Comissão Nacional de Eleições </td></tr>
</table>
Question:
What was the total turnout percentage and which party took the victory as a result?
Answer:
Turnout was 67.51%, resulting in a victory of the Social Democratic Party.