General Elections
| Election | Seats | Candidates | First Pref Share | Votes | Constituencies Contested |
| 2024 European Election | 1 | 6 | 11.1% | 194403 | 3/3 |
| 2019 European Election | 1 | 3 | 11.7% | 196001 | 3/3 |
| 2014 European Election | 3 | 3 | 19.5% | 323300 | 3/3 |
| 2009 European Election | 0 | 5 | 11.2% | 205613 | 4/4 |
| 2004 European Election | 1 | 4 | 11.1% | 197715 | 4/4 |
| 1999 European Election | 0 | 4 | 6.3% | 88165 | 4/4 |
| 1994 European Election | 0 | 4 | 3.0% | 33823 | 4/4 |
| 1989 European Election | 0 | 7 | 2.3% | 37127 | 3/4 |
| 1984 European Election | 0 | 8 | 4.9% | 54672 | 4/4 |