| Nation | Total |
|---|---|
| England | 316 |
| Wales | 38 |
| Scotland | 22 |
| Ireland | 21 |
| Samoa | 18 |
| Tonga | 15 |
| New Zealand | 14 |
| Italy | 13 |
| South Africa | 11 |
| Argentina | 9 |
| Australia | 9 |
| United States | 8 |
| Fiji | 4 |
| Canada | 2 |
| Moldova | 2 |
| Namibia | 2 |
| Georgia | 1 |
| Germany | 1 |
| Russia | 1 |
| Japan | 1 |
| Portugal | 1 |
| France | 1 |
| Romania | 1 |
