| 2000 | 2005 | 2010 | 2011 | 2012 | |
|---|---|---|---|---|---|
| Auckland | 48 | 47 | 38 | 41 | 30 |
| Waikato | 10 | 9 | 10 | 21 | 17 |
| Wellington | 14 | 6 | 10 | 4 | 11 |
| Canterbury | 14 | 8 | 11 | 10 | 9 |
| Manawatu-Wanganui | 10 | 9 | 7 | 7 | 9 |
| Northland | 9 | 6 | 10 | 4 | 7 |
| Otago | 4 | 4 | 6 | 3 | 4 |
| Hawke's Bay | 7 | 4 | 10 | 9 | 3 |
| Bay of Plenty | 16 | 4 | 14 | 12 | 2 |
| Southland | 4 | 4 | 2 | 3 | 2 |
| Taranaki | 1 | 3 | 0 | 3 | 2 |
| Gisborne District | 3 | 4 | 0 | 4 | 1 |
| Marlborough District | 2 | 0 | 0 | 2 | 1 |
| Tasman District | 0 | 0 | 0 | 0 | 0 |
| West Coast | 0 | 1 | 1 | 0 | 0 |
| Nelson City | 0 | 0 | 0 | 2 | 0 |