New Zealand law requires reliable abortion statistics are collected and published annually.
In Australia, it is left to the state governments to record the number of abortions performed and only South Australia keeps accurate records. This state of affairs makes it difficult for social scientists, researchers and statisticians to gauge the annual numbers, but they are thought to be around 70,000 per annum.
When the first abortion clinic opened in Auckland in April 1974, accurate records were kept and with the passing of the Contraception, Sterilisation and Abortion Act (1977) every abortion had to be performed at a licenced clinic or hospital and the records sent to the Abortion Supervisory Committee who share them with Government statistics.
Statistics New Zealand release preliminary statistics around June each year. These are followed by a more detailed report which is released by the Abortion Supervisory Committee later in the year.