(000m3)
| ye 31 Mar | 2002 | 2003 | 2004 | 2005 |
| Northland | 144 | 178 | 211 | 239 |
| Auckland | 336 | 368 | 347 | 351 |
| CNI | 1779 | 2074 | 1926 | 1957 |
| E Coast/HB | 293 | 359 | 346 | 388 |
| Southern NI | 273 | 281 | 219 | 248 |
| Nelson/Marl | 356 | 408 | 432 | 426 |
| Canterbury | 217 | 210 | 215 | 211 |
| West Coast | 50 | 92 | 88 | 88 |
| Otago/S'land | 388 | 447 | 409 | 423 |
| Total | 3836 | 4417 | 4193 | 4331 |