| 2010 | 2011 | 2012 | |
|---|---|---|---|
| West Coast | 13.762 | 14.022 | 14.569 |
| Waikato | 14.244 | 14.405 | 14.110 |
| Bay of Plenty | 12.351 | 11.896 | 13.095 |
| Taranaki | 9.549 | 11.732 | 12.462 |
| Hawke's Bay | 13.899 | 13.112 | 12.287 |
| Wellington | 12.035 | 11.595 | 11.836 |
| Southland | 12.422 | 12.547 | 11.702 |
| Manawatu-Wanganui | 10.947 | 10.749 | 11.412 |
| Northland | 11.783 | 11.608 | 11.125 |
| Canterbury | 11.108 | 10.578 | 10.571 |
| Otago | 11.416 | 10.763 | 10.391 |
| Gisborne District | 12.968 | 10.713 | 10.337 |
| Auckland | 10.495 | 9.829 | 9.955 |