Year-on-year change in the cost of living for beneficiary households in New Zealand

All households: All private New Zealand-resident households. This is the target population for the Household Economic Survey (HES).
Beneficiary: Households where the highest-income recipient receives a benefit payment, classified as a ‘main benefit’ in the Household Economic Survey.
Equivalisation: A technique that adjusts expenditure/income information to help compare economic standard of living across households.
Expenditure (quintiles): Equivalised household expenditure. Five groups from low to high.
Income (quintiles): Equivalised household disposable income. Five groups from low to high.
Māori: Households where at least one member has reported Māori ethnicity (as one of their ethnicities).
Superannuitant: Households where the highest-income recipient received a New Zealand government pension.

http://datainfoplus.stats.govt.nz/Item/nz.govt.stats/a46a6353-947a-4062-89e7-c6faef4fece1/?_ga=2.212705428.1880314164.1549847580-321851374.1528776322

At URL provided, select 'Economic Indicators' > 'Household living-costs price Indexes - HPI' > 'HLPI All groups (Qrtly-Mar/Jun/Sep/Dec)'. All variables were selected to generate this dataset. Figure.NZ has calculated the quarter-on-quarter percentage changes and the year-on-year percentage changes based on the index provided by Stats NZ.

The household living-costs price index (HLPI) provides insights into the inflation experienced by 13 different household groups: beneficiaries, Māori, income quintiles (five groups), expenditure quintiles (five groups), and superannuitants. An all-households HLPI is published for comparison.

This series was created to better reflect the inflation experienced by different demographic groups, according to their respective consumption of goods and services.