| Nation | Total |
|---|---|
| England | 159 |
| France | 145 |
| Scotland | 74 |
| Italy | 62 |
| Wales | 60 |
| South Africa | 28 |
| Argentina | 27 |
| Fiji | 25 |
| New Zealand | 23 |
| Australia | 17 |
| Samoa | 13 |
| Georgia | 13 |
| Ireland | 11 |
| Tonga | 8 |
| United States | 5 |
| 2 | |
| Canada | 2 |
| Russia | 2 |
| Portugal | 1 |
| Germany | 1 |
| Spain | 1 |
| Colombia | 1 |
| Belgium | 1 |
| Uruguay | 1 |
| Romania | 1 |
| Namibia | 1 |
