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:
1959 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 colspan=1 rowspan=1 > Social Democratic Party </td><td colspan=1 rowspan=1 > 259,139 </td><td colspan=1 rowspan=1 > 26.4 </td><td class="highlighted"  colspan=1 rowspan=1 > 51 </td><td colspan=1 rowspan=1 > –2 </td></tr>
<tr> <td colspan=1 rowspan=1 > Free Democratic Party </td><td colspan=1 rowspan=1 > 232,557 </td><td colspan=1 rowspan=1 > 23.7 </td><td class="highlighted"  colspan=1 rowspan=1 > 51 </td><td colspan=1 rowspan=1 > +1 </td></tr>
<tr> <td colspan=1 rowspan=1 > Conservative Christian Social Party </td><td colspan=1 rowspan=1 > 229,088 </td><td colspan=1 rowspan=1 > 23.3 </td><td colspan=1 rowspan=1 > 47 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <td colspan=1 rowspan=1 > Party of Farmers, Traders and Independents </td><td colspan=1 rowspan=1 > 113,611 </td><td colspan=1 rowspan=1 > 11.6 </td><td colspan=1 rowspan=1 > 23 </td><td colspan=1 rowspan=1 > +1 </td></tr>
<tr> <td colspan=1 rowspan=1 > Ring of Independents </td><td colspan=1 rowspan=1 > 54,049 </td><td colspan=1 rowspan=1 > 5.5 </td><td colspan=1 rowspan=1 > 10 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <td colspan=1 rowspan=1 > Swiss Party of Labour </td><td colspan=1 rowspan=1 > 26,346 </td><td colspan=1 rowspan=1 > 2.7 </td><td colspan=1 rowspan=1 > 3 </td><td colspan=1 rowspan=1 > –1 </td></tr>
<tr> <td colspan=1 rowspan=1 > Liberal Democratic Party </td><td colspan=1 rowspan=1 > 22,934 </td><td colspan=1 rowspan=1 > 2.3 </td><td colspan=1 rowspan=1 > 5 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <td colspan=1 rowspan=1 > Social-Political Group </td><td colspan=1 rowspan=1 > 21,170 </td><td colspan=1 rowspan=1 > 2.2 </td><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <td colspan=1 rowspan=1 > Evangelical People's Party </td><td colspan=1 rowspan=1 > 14,038 </td><td colspan=1 rowspan=1 > 1.4 </td><td colspan=1 rowspan=1 > 2 </td><td colspan=1 rowspan=1 > +1 </td></tr>
<tr> <td colspan=1 rowspan=1 > Other parties </td><td colspan=1 rowspan=1 > 9,438 </td><td colspan=1 rowspan=1 > 1.0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > – </td></tr>
<tr> <td colspan=1 rowspan=1 > Invalid/blank votes </td><td colspan=1 rowspan=1 > 26,193 </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 > 1,008,563 </td><td colspan=1 rowspan=1 > 100 </td><td class="highlighted"  colspan=1 rowspan=1 > 196 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <td colspan=1 rowspan=1 > Registered voters/turnout </td><td colspan=1 rowspan=1 > 1,473,155 </td><td colspan=1 rowspan=1 > 68.5 </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > – </td></tr>
<tr> <td colspan=5 rowspan=1 > Source: Nohlen & Stöver </td></tr>
</table>
Question:
How many seats did each of the top two parties receive in the 1959 Swiss federal election, and how many total seats were available?
Answer:
The Social Democratic Party and the Free Democratic Party emerged as the largest parties in the National Council, each winning 51 of the 196 seats.