The consumers price index (CPI) is a measure of inflation for New Zealand households. It records changes in the price of goods and services. It influences interest rates and is used to calculate changes to benefit payments.

The CPI increased by 5.9% from the December 2020 quarter to the December 2021 quarter, the biggest increase since 1990, according to Stats NZ.

Read more from Stats NZ here.

Credit to Stats NZ for statistics and graph.