Year based at June 30
| 2005 | 2011 | 2012 | |
|---|---|---|---|
| Hawke's Bay | 6,067 | 5,135 | 5,115 |
| Tasman District | 2,902 | 2,447 | 2,496 |
| Otago | 622 | 468 | 459 |
| Canterbury | 210 | 217 | 226 |
| Waikato | 343 | 162 | 141 |
| Gisborne District | 256 | 105 | 110 |
| Auckland | 123 | 144 | 96 |
| Manawatu-Wanganui | 40 | 20 | 34 |
| Marlborough District | 80 | 18 | |
| Northland | 29 | 17 | |
| Bay of Plenty | 9 | 5 | |
| Nelson City | 89 | 86 | |
| Wellington | 179 |