The following databases are sources of New Zealand statistical information and commentaries:
Not sure where to start? These books might help...
As New Zealand's major source of official statistics, Statistics New Zealand is an excellent source for data including demographic, industrial and environmental data. Below are links to various data sets and tools that are useful starting points.
re3data.org is a global registry of research data repositories.
Gapminder.org is a not for profit website giving access to time-series data on a number of world development issues such as income, enviromental change and population growth. This data is displayed in engaging, interactive maps.