| Date | CDU | SPD | FDP | Verts | PDS/Die Linke | Zentrum | AFD | Deutsche Partei/GDP | DRP/GB-BHE/NPD | Autres |
| 1949-01-01 | 17.6 | 33.4 | 7.5 | | | 3.4 | | 17.8 | 8.1 | 12.2 |
| 1953-01-01 | 35.2 | 30.1 | 6.9 | | | | | 11.9 | 14.3 | 1.6 |
| 1957-01-01 | 39.1 | 32.8 | 5.9 | | | | | 11.4 | 9.9 | 0.9 |
| 1961-01-01 | 39 | 38.7 | 13.2 | | | | | 6.1 | | 3 |
| 1965-01-01 | 45.8 | 39.8 | 10.9 | | | | | | 2.5 | 1 |
| 1969-01-01 | 45.2 | 43.8 | 5.6 | | | | | | 4.6 | 0.8 |
| 1972-01-01 | 42.7 | 48.1 | 8.5 | | | | | | | 0.7 |
| 1976-01-01 | 45.7 | 45.7 | 7.9 | | | | | | | 0.7 |
| 1980-01-01 | 39.8 | 46.9 | 11.3 | 1.6 | | | | | | 0.4 |
| 1983-01-01 | 45.6 | 41.3 | 6.9 | 5.7 | | | | | | 0.5 |
| 1987-01-01 | 41.5 | 41.4 | 8.8 | 7.4 | | | | | | 0.9 |
| 1990-01-01 | 44.3 | 38.4 | 10.3 | 4.5 | | | | | | 2.5 |
| 1994-01-01 | 41.3 | 40.6 | 7.7 | 7.1 | | | | | | 3.3 |
| 1998-01-01 | 34.1 | 49.4 | 6.4 | 5.9 | | | | | | 4.2 |
| 2002-01-01 | 34.5 | 47.8 | 7.1 | 7.3 | | | | | | 3.3 |
| 2005-01-01 | 33.6 | 43.2 | 8.9 | 7.4 | 4.3 | | | | | 2.4 |
| 2009-01-01 | 33.2 | 29.3 | 13.3 | 10.7 | 8.6 | | | | | 4.9 |
| 2013-01-01 | 41.1 | 33.1 | 4.2 | 8.8 | 5 | | 3.7 | | | 4.1 |
| 2017-01-01 | 34.9 | 27.4 | 9.3 | 8.7 | 7 | | 9.1 | | | 3.6 |
| 2021-01-01 | 24.2 | 33.1 | 10.5 | 16.1 | 3.3 | | 7.4 | | | 5.4 |
| 2025-01-01 | 28.1 | 23 | 4.1 | 11.5 | 8.1 | | 17.8 | | | 7.4 |
