| BE | CDS-PP | CDU | PSD | PS | |
| 1999 | 0,91% | 9,19% | 3,19% | 36,33% | 47,41% |
| 2002 | 1,53% | 9,80% | 2,49% | 42,83% | 40,37% |
| 2005 | 4,90% | 6,37% | 3,22% | 30,62% | 50,03% |
| 2009 | 9,48% | 9,26% | 3,61% | 31,54% | 40,31% |
(VOLTAR)