General Elections
| Election | Seats | Candidates | First Pref Share | Votes | Constituencies Contested |
| 2024 European Election | 4 | 5 | 20.8% | 362766 | 3/3 |
| 2019 European Election | 5 | 7 | 29.6% | 496459 | 3/3 |
| 2014 European Election | 4 | 6 | 22.3% | 369120 | 3/3 |
| 2009 European Election | 4 | 7 | 29.1% | 532889 | 4/4 |
| 2004 European Election | 5 | 6 | 27.8% | 494412 | 4/4 |
| 1999 European Election | 4 | 7 | 24.6% | 342171 | 4/4 |
| 1994 European Election | 4 | 8 | 24.3% | 276095 | 4/4 |
| 1989 European Election | 4 | 9 | 21.6% | 353094 | 4/4 |
| 1984 European Election | 6 | 9 | 32.2% | 361034 | 4/4 |
| 1979 European Election | 4 | 13 | 33.1% | 443652 | 4/4 |