| Europa | |||||
|---|---|---|---|---|---|
| 2019 | 2014 | 2009 | 2004 | 1999 | |
| SPD | 14.2 | 33.7 | 25.1 | 20.6 | 33.8 |
| CDU | 24.5 | 32.4 | 38.4 | 47.7 | 50 |
| FDP | 7.2 | 2.7 | 13.5 | 9.8 | 7.6 |
| Grüne | 27.6 | 10 | 9.4 | 12.6 | 2.9 |
| Linke | 3.5 | 3.9 | 4.1 | - | - |
| AfD | 9.1 | 6.8 | - | - | - |
| Piraten | 1.0 | 3.4 | 1.1 | - | - |
| Sonst. | 12.9 | 7.1 | 8.4 | 9.3 | 5.7 |
| Beteiligung | 48.1 | 31 | 30.5 | 28.8 | 31 |