Year-on-year price change in price of household gas in New Zealand
2015 Q2–2025 Q2, % change from same quarter previous year
| Quarter | % change from same quarter previous year |
|---|---|
| 2015 Q2 | -0.8620690496953% |
| 2015 Q3 | -0.7902299622207% |
| 2015 Q4 | 0.6456240625221% |
| 2016 Q1 | 1.154401163283% |
| 2016 Q2 | 4.130434875091% |
| 2016 Q3 | 4.127443973366% |
| 2016 Q4 | 3.136136847478% |
| 2017 Q1 | 2.781740334043% |
| 2017 Q2 | 0.6263047621759% |
| 2017 Q3 | 1.251738446712% |
| 2017 Q4 | 1.030131299308% |
| 2018 Q1 | 1.852186016591% |
| 2018 Q2 | 1.5% |
| 2018 Q3 | 0.7035714608021% |
| 2018 Q4 | 2.274975272008% |
| 2019 Q1 | 2.068965517241% |
| 2019 Q2 | 2.068965517241% |
| 2019 Q3 | 2.465483234714% |
| 2019 Q4 | 2.514506769826% |
| 2020 Q1 | 2.316602316602% |
| 2020 Q2 | 1.737451737452% |
| 2020 Q3 | 1.251203079885% |
| 2020 Q4 | -0.5660377358491% |
| 2021 Q1 | -0.4716981132076% |
| 2021 Q2 | 0.3795066413662% |
| 2021 Q3 | 0.3802281368821% |
| 2021 Q4 | 0.5692599620493% |
| 2022 Q1 | 1.421800947867% |
| 2022 Q2 | 3.686200378072% |
| 2022 Q3 | 5.208333333333% |
| 2022 Q4 | 7.358490566038% |
| 2023 Q1 | 10.65420560748% |
| 2023 Q2 | 10.02734731085% |
| 2023 Q3 | 12.06120612061% |
| 2023 Q4 | 13.09314586995% |
| 2024 Q1 | 9.459459459459% |
| 2024 Q2 | 8.533554266777% |
| 2024 Q3 | 7.389558232932% |
| 2024 Q4 | 8.080808080808% |
| 2025 Q1 | 12.80864197531% |
| 2025 Q2 | 15.72519083969% |
Definitions
Price index: measures the change in price between time periods for a given set of goods and services. It summarises a set of prices for a variety of goods and services collected from a number of outlets.
Index reference period: the benchmark to which prices in other periods are compared (eg. if the index number in a later period is 1150, prices have increased by 15.0 percent since the index reference period). Prices for later periods can also be compared in similar fashion. The CPI has an index reference period of the June 2017 quarter (=1000).
For more information
Changes to data collection/processing
Stats NZ reviews the CPI basket of goods and services every three years to ensure it remains relevant. This is done by surveying people to find out what they spend their money on.
Impact of GST rise on the CPI: GST rose from 12.5 percent to 15 percent on 1 October 2010.
Data provided by
Dataset name
Consumers Price Index: CPI Level 3 Classes for New Zealand (Qrtly-Mar/Jun/Sep/Dec) June 2025
Webpage:
https://infoshare.stats.govt.nz/
How to find the data
At URL provided, select Economic indicators > Consumers Price Index - CPI > CPI Level 3 Classes for New Zealand (Qrtly-Mar/Jun/Sep/Dec). Select all variables, then select desired download format.
Figure.NZ calculated the percentage changes based on the indexes provided by the source.
Import & extraction details
File as imported: Consumers Price Index: CPI Level 3 Classes for New Zealand (Qrtly-Mar/Jun/Sep/Dec) June 2025
From the dataset Consumers Price Index: CPI Level 3 Classes for New Zealand (Qrtly-Mar/Jun/Sep/Dec) June 2025, this data was extracted:
- Sheet: CPI317001_20250122_062722_65
- Range:
B3:YD205 - Provided: 42,744 data points
This data forms the table Prices - Price change of goods and services (CPI Level 3 classes) 1974 Q4–2025 Q2.
Dataset originally released on:
July 21, 2025
Purpose of collection
The aim of the CPI is to measure price changes of the same sample of products at each outlet over time. When there is a change in the size or quality of any of the goods or services in the basket, Statistics New Zealand make an adjustment to ensure that the price change shown in the CPI is not affected by the change in size or quality.
The CPI is used to help set monetary policy and for monitoring economic performance. The government uses the CPI to adjust New Zealand Superannuation and unemployment benefit payments once a year, to help ensure that these payments maintain their purchasing power. Employers and employees use the CPI in wage negotiations.