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:
1898 German federal election
Table title:
Results
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 > 2,107,100 </td><td colspan=1 rowspan=1 > 27.2 </td><td class="highlighted"  colspan=1 rowspan=1 > 56 </td><td colspan=1 rowspan=1 > +12 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Centre Party </td><td colspan=1 rowspan=1 > 1,455,100 </td><td colspan=1 rowspan=1 > 18.8 </td><td class="highlighted"  colspan=1 rowspan=1 > 102 </td><td colspan=1 rowspan=1 > +6 </td></tr>
<tr> <td colspan=1 rowspan=1 > National Liberal Party </td><td colspan=1 rowspan=1 > 971,300 </td><td colspan=1 rowspan=1 > 12.5 </td><td colspan=1 rowspan=1 > 46 </td><td colspan=1 rowspan=1 > −7 </td></tr>
<tr> <td colspan=1 rowspan=1 > German Conservative Party </td><td colspan=1 rowspan=1 > 859,200 </td><td colspan=1 rowspan=1 > 11.1 </td><td colspan=1 rowspan=1 > 56 </td><td colspan=1 rowspan=1 > −16 </td></tr>
<tr> <td colspan=1 rowspan=1 > Free-minded People's Party </td><td colspan=1 rowspan=1 > 558,300 </td><td colspan=1 rowspan=1 > 7.2 </td><td colspan=1 rowspan=1 > 29 </td><td colspan=1 rowspan=1 > +5 </td></tr>
<tr> <td colspan=1 rowspan=1 > German Reich Party </td><td colspan=1 rowspan=1 > 343,600 </td><td colspan=1 rowspan=1 > 4.5 </td><td colspan=1 rowspan=1 > 23 </td><td colspan=1 rowspan=1 > −5 </td></tr>
<tr> <td colspan=1 rowspan=1 > Anti-Semites </td><td colspan=1 rowspan=1 > 284,300 </td><td colspan=1 rowspan=1 > 3.7 </td><td colspan=1 rowspan=1 > 13 </td><td colspan=1 rowspan=1 > −3 </td></tr>
<tr> <td colspan=1 rowspan=1 > Polish Party </td><td colspan=1 rowspan=1 > 244,100 </td><td colspan=1 rowspan=1 > 3.1 </td><td colspan=1 rowspan=1 > 14 </td><td colspan=1 rowspan=1 > −5 </td></tr>
<tr> <td colspan=1 rowspan=1 > Free-minded Union </td><td colspan=1 rowspan=1 > 195,700 </td><td colspan=1 rowspan=1 > 2.5 </td><td colspan=1 rowspan=1 > 12 </td><td colspan=1 rowspan=1 > −1 </td></tr>
<tr> <td colspan=1 rowspan=1 > Bavarian Peasants' League </td><td colspan=1 rowspan=1 > 140,300 </td><td colspan=1 rowspan=1 > 1.8 </td><td colspan=1 rowspan=1 > 5 </td><td colspan=1 rowspan=1 > +1 </td></tr>
<tr> <td colspan=1 rowspan=1 > German Agrarian League </td><td colspan=1 rowspan=1 > 110,400 </td><td colspan=1 rowspan=1 > 1.4 </td><td colspan=1 rowspan=1 > 6 </td><td colspan=1 rowspan=1 > New </td></tr>
<tr> <td colspan=1 rowspan=1 > German People's Party </td><td colspan=1 rowspan=1 > 108,500 </td><td colspan=1 rowspan=1 > 1.4 </td><td colspan=1 rowspan=1 > 8 </td><td colspan=1 rowspan=1 > −3 </td></tr>
<tr> <td colspan=1 rowspan=1 > Alsace-Lorraine Party </td><td colspan=1 rowspan=1 > 107,400 </td><td colspan=1 rowspan=1 > 1.3 </td><td colspan=1 rowspan=1 > 10 </td><td colspan=1 rowspan=1 > +2 </td></tr>
<tr> <td colspan=1 rowspan=1 > German-Hanoverian Party </td><td colspan=1 rowspan=1 > 105,200 </td><td colspan=1 rowspan=1 > 1.3 </td><td colspan=1 rowspan=1 > 9 </td><td colspan=1 rowspan=1 > +2 </td></tr>
<tr> <td colspan=1 rowspan=1 > Danish Party </td><td colspan=1 rowspan=1 > 15,000 </td><td colspan=1 rowspan=1 > 0.2 </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <td colspan=1 rowspan=1 > Others </td><td colspan=1 rowspan=1 > 146,800 </td><td colspan=1 rowspan=1 > 2.0 </td><td colspan=1 rowspan=1 > 7 </td><td colspan=1 rowspan=1 > +6 </td></tr>
<tr> <td colspan=1 rowspan=1 > Invalid/blank votes </td><td colspan=1 rowspan=1 > 34,000 </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 > 7,786,700 </td><td colspan=1 rowspan=1 > 100 </td><td class="highlighted"  colspan=1 rowspan=1 > 397 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <td colspan=1 rowspan=1 > Registered voters/turnout </td><td colspan=1 rowspan=1 > 11,441,100 </td><td colspan=1 rowspan=1 > 68.1 </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > – </td></tr>
<tr> <td colspan=5 rowspan=1 > Source: Nohlen & Stöver, DGDB </td></tr>
</table>
Question:
What is the difference of seats between the Social Democratic Party and the Centre Party?
Answer:
The Centre Party won 102 of the 397 seats and the Social Democratic Party won 56.