New figures show fewer teenagers are having babies.
Statistics New Zealand says teenage fertility rates have continued to drop each year since 2008.
In 2015, the rate for women aged 15-19 years was 19 births-per-thousand women.
That was down from 33 births-per-thousand in 2008.
The decreasing rate of teen pregnancies was in contrast to overall higher fertility.
Statistics New Zealand figures show there were 61,038 live births last year.
That was a seven percent increase on the previous year - though there had been a dip in the preceding four years.
Last year, women aged 30-34 years had the highest fertility rate of any age group since 2002.
There were 125 births for every thousand women aged 30-34 years, up from 119 in 2014.
Report figures to show number of births-per-thousand by age group:
- 25-29 years - up 1,137 - largely due to population increase
- 35-39 years - up 696 - largely due to increased fertility
- 20-24 years - up 544 - due to slightly higher fertility and increased population.