Year based at June 30
| 2005 | 2011 | 2012 | |
|---|---|---|---|
| Bay of Plenty | 9 100 | 10 229 | 9 912 |
| Waikato | 614 | 659 | 726 |
| Northland | 520 | 510 | 574 |
| Tasman District | 695 | 542 | 497 |
| Auckland | 441 | 435 | 363 |
| Gisborne District | 272 | 321 | 326 |
| Hawke's Bay | 220 | 205 | 222 |
| Otago | 0 | ||
| Taranaki | 0 | ||
| West Coast | 0 | ||
| Southland | 0 |