Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Date Released | Institute | Socialist | Social Democratic | Green-Communist | Left Bloc | People's Party | Lead |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 7 June 2009 | Election Results | 26.5% 7 seats | 31.7% 8 seats | 10.6% 2 seats | 10.7% 3 seats | 8.4% 2 seats | 5.2% |
| 7 June 2009 | Exit Poll – RTP1 Universidade Católica | 28.0% – 33.0% 7 – 8 seats | 29.0% – 34.0% 8 – 9 seats | 9.0% – 12.0% 2 – 3 seats | 9.0% – 12.0% 2 seats | 7.0% – 10.0% 2 seats | 1.0% |
| 7 June 2009 | Exit Poll – SIC Eurosondagem | 27.7% – 31.5% 7 – 8 seats | 29.2% – 33.0% 7 – 8 seats | 9.5% – 11.3% 2 – 3 seats | 11.6% – 13.4% 3 seats | 7.5% – 9.3% 2 seats | 1.5% |
| 7 June 2009 | Exit Poll – TVI INTERCAMPUS | 24.1% – 28.1% 6 – 8 seats | 30.4% – 34.4% 8 – 9 seats | 9.7% – 12.7% 2 – 3 seats | 9.8% – 12.8% 2 – 3 seats | 6.7% – 9.3% 1 – 2 seats | 6.3% |
| 5 June 2009 | Universidade Católica | 34.0% | 32.0% | 11.0% | 9.0% | 4.0% | 2.0% |
| 5 June 2009 | Eurosondagem | 36.0% | 31.9% | 9.0% | 10.1% | 6.1% | 4.1% |
| 4 June 2009 | Aximage | 36.2% | 30.9% | 10.1% | 10.2% | 5.0% | 5.3% |
| 4 June 2009 | Marktest | 29.4% | 32.5% | 8.9% | 8.9% | 3.3% | 3.1% |
| 1 June 2009 | Marktest | 31.9% | 30.1% | 7.1% | 7.1% | 4.7% | 1.8% |
| 29 May 2009 | Eurosondagem | 35.5% | 32.5% | 9.2% | 8.8% | 6.5% | 3.0% |
| 22 May 2009 | Eurosondagem | 34.3% | 32.1% | 8.9% | 10.1% | 6.9% | 2.2% |
| 9 May 2009 | Marktest | 33.1% | 32.9% | 7.6% | 8.4% | 4.5% | 0.2% |
| 1 May 2009 | Universidade Católica | 39.0% | 36.0% | 7.0% | 12.0% | 2.0% | 3.0% |
| 24 April 2009 | INTERCAMPUS | 34.0% | 33.5% | 7.9% | 18.0% | 6.9% | 0.5% |
| 13 June 2004 | Election Results | 44.5% 12 seats | 33.3% 7 seats | 9.1% 2 seats | 4.9% 1 seats | —* 2 seats | 11.2% |
| *In coalition with Social Democratic Party. | *In coalition with Social Democratic Party. | *In coalition with Social Democratic Party. | *In coalition with Social Democratic Party. | *In coalition with Social Democratic Party. | *In coalition with Social Democratic Party. | *In coalition with Social Democratic Party. | *In coalition with Social Democratic Party. |
Question:
Name the lead for institute of election results and social democratic of 31.7% 8 seats
Answer:
5.2%