| Nation | Total |
|---|---|
| England | 27 |
| New Zealand | 8 |
| Australia | 8 |
| Wales | 7 |
| South Africa | 5 |
| Ireland | 5 |
| Scotland | 4 |
| Argentina | 1 |
| France | 1 |
| Samoa | 1 |
28 years of data.
| Nation | Total |
|---|---|
| England | 27 |
| New Zealand | 8 |
| Australia | 8 |
| Wales | 7 |
| South Africa | 5 |
| Ireland | 5 |
| Scotland | 4 |
| Argentina | 1 |
| France | 1 |
| Samoa | 1 |
28 years of data.