| Nation | Total |
|---|---|
| England | 153 |
| France | 139 |
| Ireland | 120 |
| Wales | 104 |
| Italy | 69 |
| Scotland | 58 |
| New Zealand | 42 |
| South Africa | 41 |
| Samoa | 16 |
| Fiji | 15 |
| Tonga | 13 |
| Australia | 11 |
| Argentina | 10 |
| Georgia | 9 |
| United States | 4 |
| Canada | 4 |
| Spain | 3 |
| Japan | 2 |
| Romania | 2 |
| Portugal | 1 |
| Cameroon | 1 |
| Uruguay | 1 |
| Namibia | 1 |
| Austria | 1 |
