Chart 3. New Zealand's population, by different measures
Census
usually resident population (CURP)
Estimated
resident population (ERP)
1996
3.62M
3.73M
2001
3.74M
3.88M
2006
4.03M
4.18M
2013
4.24M
4.44M
2018
4.7M
4.9M
2023
4.99M
5.22M