The data is the surface area of sea ice in millions of square kilometres.

The data is sourced from the National Snow and Ice Data Center.

Data on the number of births and deaths in New Zealand.

The data is sourced from Statistics New Zealand.

Data on the number of penguins at the Phillip Island Penguin Parade in Australia.

This data is sourced from the Philip Island Nature Parks Research Team.

The visitors’ dataset is the number of people entering New Zealand on a Visitor Visa from Australia, China, Japan and the UK.

The data is sourced from Statistics New Zealand.

Information on imports to and from New Zealand.

The data is sourced from Statistics New Zealand.

The volume of wood removed from different types of forests in New Zealand.

The data is sourced from the Ministry for Primary Industries.

The number of people in employment in New Zealand.

The data is sourced from Statistics New Zealand.

Data on the value of sunglasses sold.