| Nation | Total |
|---|---|
| England | 330 |
| Wales | 177 |
| Scotland | 22 |
| Ireland | 19 |
| New Zealand | 16 |
| Samoa | 14 |
| Tonga | 13 |
| South Africa | 13 |
| Italy | 11 |
| United States | 10 |
| Argentina | 9 |
| Australia | 9 |
| Fiji | 7 |
| Canada | 4 |
| Romania | 1 |
| Germany | 1 |
| Georgia | 1 |
| France | 1 |
| Namibia | 1 |
| Portugal | 1 |
| Moldova | 1 |
| Russia | 1 |
| Japan | 1 |
