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:
1951 Swiss federal election
Table title:
National Council
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Party </th><th colspan=1 rowspan=1 > Votes </th><th colspan=1 rowspan=1 > % </th><th colspan=1 rowspan=1 > Seats </th><th colspan=1 rowspan=1 > +/– </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Social Democratic Party </td><td colspan=1 rowspan=1 > 249,857 </td><td colspan=1 rowspan=1 > 26.0 </td><td colspan=1 rowspan=1 > 49 </td><td colspan=1 rowspan=1 > +1 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Free Democratic Party </td><td colspan=1 rowspan=1 > 230,687 </td><td colspan=1 rowspan=1 > 24.0 </td><td class="highlighted"  colspan=1 rowspan=1 > 51 </td><td colspan=1 rowspan=1 > –1 </td></tr>
<tr> <td colspan=1 rowspan=1 > Swiss Conservative People's Party </td><td colspan=1 rowspan=1 > 216,616 </td><td colspan=1 rowspan=1 > 22.5 </td><td colspan=1 rowspan=1 > 48 </td><td colspan=1 rowspan=1 > +4 </td></tr>
<tr> <td colspan=1 rowspan=1 > Party of Farmers, Traders and Independents </td><td colspan=1 rowspan=1 > 120,819 </td><td colspan=1 rowspan=1 > 12.6 </td><td colspan=1 rowspan=1 > 23 </td><td colspan=1 rowspan=1 > +2 </td></tr>
<tr> <td colspan=1 rowspan=1 > Ring of Independents </td><td colspan=1 rowspan=1 > 49,100 </td><td colspan=1 rowspan=1 > 5.1 </td><td colspan=1 rowspan=1 > 10 </td><td colspan=1 rowspan=1 > +2 </td></tr>
<tr> <td colspan=1 rowspan=1 > Swiss Party of Labour </td><td colspan=1 rowspan=1 > 25,659 </td><td colspan=1 rowspan=1 > 2.7 </td><td colspan=1 rowspan=1 > 5 </td><td colspan=1 rowspan=1 > –2 </td></tr>
<tr> <td colspan=1 rowspan=1 > Liberal Democratic Party </td><td colspan=1 rowspan=1 > 24,813 </td><td colspan=1 rowspan=1 > 2.6 </td><td colspan=1 rowspan=1 > 5 </td><td colspan=1 rowspan=1 > –2 </td></tr>
<tr> <td colspan=1 rowspan=1 > Social-Political Group </td><td colspan=1 rowspan=1 > 21,606 </td><td colspan=1 rowspan=1 > 2.2 </td><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > –1 </td></tr>
<tr> <td colspan=1 rowspan=1 > Evangelical People's Party </td><td colspan=1 rowspan=1 > 9,559 </td><td colspan=1 rowspan=1 > 1.0 </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <td colspan=1 rowspan=1 > Liberal Socialist Party </td><td colspan=1 rowspan=1 > 8,194 </td><td colspan=1 rowspan=1 > 0.9 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > –1 </td></tr>
<tr> <td colspan=1 rowspan=1 > Other parties </td><td colspan=1 rowspan=1 > 4,588 </td><td colspan=1 rowspan=1 > 0.5 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <td colspan=1 rowspan=1 > Invalid/blank votes </td><td colspan=1 rowspan=1 > 25,439 </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > – </td></tr>
<tr> <td colspan=1 rowspan=1 > Total </td><td colspan=1 rowspan=1 > 986,937 </td><td colspan=1 rowspan=1 > 100 </td><td class="highlighted"  colspan=1 rowspan=1 > 196 </td><td colspan=1 rowspan=1 > +2 </td></tr>
<tr> <td colspan=1 rowspan=1 > Registered voters/turnout </td><td colspan=1 rowspan=1 > 1,386,146 </td><td colspan=1 rowspan=1 > 71.2 </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > – </td></tr>
<tr> <td colspan=5 rowspan=1 > Source: Mackie & Rose, Nohlen & Stöver </td></tr>
</table>
Question:
Which party received the most votes and how any seats did they win in the 1951 Swiss federal election?
Answer:
The Social Democratic Party received the most votes, and the Free Democratic Party remained the largest party in the National Council, winning 51 of the 196 seats.