| Editions in season | 39 | 39 | 41 | 39 | 39 | 42 | 38 | 38 | 37 | 352 |
|---|---|---|---|---|---|---|---|---|---|---|
| Alba party | 1 0.98% | 1 0.10% | ||||||||
| Alliance party | 1 0.97% | 1 0.10% | ||||||||
| Brexit party | 3 2.70% | 7 5.69% | 1 0.92% | 11 1.06% | ||||||
| Change UK | 2 1.80% | 2 0.19% | ||||||||
| Conservatives | 38 29.23% | 42 32.56% | 39 32.23% | 41 38.32.% | 42 37.84% | 42 34.15% | 40 36.70% | 38 36.89% | 40 39.22% | 362 34.98% |
| Democratic Unionist party | 1 0.76% | 1 0.94% | 1 0.90% | 1 0.81% | 1 0.92% | 1 0.97% | 6 0.58% | |||
| Green party | 4 3.08% | 5 3.88% | 4 3.31% | 2 1.87% | 3 2.70% | 2 1.63% | 2 1.84% | 1 0.97% | 2 1.96% | 25 2.42% |
| Labour | 37 28.46.% | 36 27.91% | 40 33.06% | 40 37.38% | 38 34.23% | 41 33.33% | 38 34.86% | 38 36.89% | 37 36.28% | 345 33.33% |
| Liberal Democrats | 22 16.92% | 8 6.20% | 11 9.09% | 5 4.67% | 8 7.21% | 11 8.94% | 4 3.67% | 6 5.83% | 6 5.88% | 81 7.83% |
| Peer (cross-bench / Independent) | 4 3.74% | 4 3.67% | 2 1.94% | 4 3.92% | 14 1.35% | |||||
| Plaid Cymru | 3 2.31% | 4 3.10% | 3 2.48% | 2 1.87% | 2 1.80% | 4 3.25% | 2 1.84% | 2 1.94% | 2 1.96% | 24 2.32% |
| Politician (non-UK) | 1 0.76% | 2 1.65% | 2 1.87% | 3 2.70% | 2 1.63% | 6 5.51% | 4 3.88% | 20 1.93% | ||
| Reform | 1 0.97% | 1 0.98% | 2 0.19% | |||||||
| Respect | 1 0.77% | 1 0.76% | 2 0.19% | |||||||
| Sinn Fein | 1 0.76% | 1 0.94% | 1 0.90% | 1 0.92% | 1 0.97% | 5 0.48% | ||||
| Scottish National party | 11 8.46% | 14 10.85% | 13 10.08% | 7 6.54% | 8 7.21% | 13 10.57% | 10 9.17% | 8 7.77% | 9 8.82% | 93 8.99% |
| UKIP | 14 10.77% | 16 12.40% | 9 7.44% | 2 1.87% | 41 3.96% | |||||