General Elections
| Election | Seats | Candidates | First Pref Share | Votes | Constituencies Contested |
| 2024 European Election | 1 | 3 | 3.4% | 58975 | 3/3 |
| 2019 European Election | 0 | 3 | 3.1% | 52753 | 3/3 |
| 2014 European Election | 0 | 3 | 5.3% | 88229 | 3/3 |
| 2009 European Election | 3 | 4 | 13.9% | 254619 | 4/4 |
| 2004 European Election | 1 | 5 | 10.6% | 188132 | 4/4 |
| 1999 European Election | 1 | 5 | 8.7% | 121542 | 4/4 |
| 1994 European Election | 1 | 6 | 11.0% | 124972 | 4/4 |
| 1989 European Election | 1 | 5 | 9.5% | 155782 | 4/4 |
| 1984 European Election | 0 | 4 | 8.4% | 93656 | 4/4 |
| 1979 European Election | 4 | 6 | 14.5% | 193898 | 4/4 |