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:
Progress Party (Norway)
Table title:
Local elections
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Vote (county) </th><th colspan=1 rowspan=1 > Vote (municipal) </th><th colspan=1 rowspan=1 > Party leader </th></tr>
<tr> <th colspan=1 rowspan=1 > 1975 </th><td colspan=1 rowspan=1 > 1.4% </td><td colspan=1 rowspan=1 > 0.8% </td><td colspan=1 rowspan=1 > Eivind Eckbo </td></tr>
<tr> <th colspan=1 rowspan=1 > 1979 </th><td colspan=1 rowspan=1 > 2.5% </td><td colspan=1 rowspan=1 > 1.9% </td><td colspan=1 rowspan=1 > Carl I. Hagen </td></tr>
<tr> <th colspan=1 rowspan=1 > 1983 </th><td class="highlighted"  colspan=1 rowspan=1 > 6.3% </td><td colspan=1 rowspan=1 > 5.3% </td><td colspan=1 rowspan=1 > Carl I. Hagen </td></tr>
<tr> <th class="highlighted"  colspan=1 rowspan=1 > 1987 </th><td class="highlighted"  colspan=1 rowspan=1 > 12.3% </td><td colspan=1 rowspan=1 > 10.4% </td><td colspan=1 rowspan=1 > Carl I. Hagen </td></tr>
<tr> <th colspan=1 rowspan=1 > 1991 </th><td colspan=1 rowspan=1 > 7.0% </td><td colspan=1 rowspan=1 > 6.5% </td><td colspan=1 rowspan=1 > Carl I. Hagen </td></tr>
<tr> <th colspan=1 rowspan=1 > 1995 </th><td colspan=1 rowspan=1 > 12.0% </td><td colspan=1 rowspan=1 > 10.5% </td><td colspan=1 rowspan=1 > Carl I. Hagen </td></tr>
<tr> <th colspan=1 rowspan=1 > 1999 </th><td colspan=1 rowspan=1 > 13.4% </td><td colspan=1 rowspan=1 > 12.1% </td><td colspan=1 rowspan=1 > Carl I. Hagen </td></tr>
<tr> <th colspan=1 rowspan=1 > 2003 </th><td colspan=1 rowspan=1 > 17.9% </td><td colspan=1 rowspan=1 > 16.4% </td><td colspan=1 rowspan=1 > Carl I. Hagen </td></tr>
<tr> <th colspan=1 rowspan=1 > 2007 </th><td colspan=1 rowspan=1 > 18.5% </td><td colspan=1 rowspan=1 > 17.5% </td><td colspan=1 rowspan=1 > Siv Jensen </td></tr>
<tr> <th colspan=1 rowspan=1 > 2011 </th><td colspan=1 rowspan=1 > 11.8% </td><td colspan=1 rowspan=1 > 11.4% </td><td colspan=1 rowspan=1 > Siv Jensen </td></tr>
<tr> <th colspan=1 rowspan=1 > 2015 </th><td colspan=1 rowspan=1 > 10.2% </td><td colspan=1 rowspan=1 > 9.5% </td><td colspan=1 rowspan=1 > Siv Jensen </td></tr>
</table>
Question:
In the 1987 local elections, which party nearly doubled support from 6.3% to 12.3% in county results?
Answer:
In the 1987 local elections, the Progress Party (Norway) nearly doubled its support from 6.3% to 12.3% in county results.