Consumers Price Index - December Quarter 2019

The Consumers Price Index (CPI) is an indicator or measure of prices changes. It is a fixed weighted average of price relatives and is computed using the Laspeyres price index formula. The current weighting pattern is based on the 2005 Household Expenditure Survey (HES), which was carried out in  2005/06. The HES information was used to select the 'basket', which is the commonly used term for the goods and services prices for the purpose of compiling the CPI.

Key Facts

Quarterly Change

In the December 2019 quarter compared with the September 2019 quarter:

  • The Consumer Price Index (CPI) All Groups increased by 1.1 percent
  • The Underlying Index rose by 2.4 percent
  • Apparel group showed the highest increase of 8.0 percent caused by increases in all apparel subgroup.
  • Housing group prices increased by 5.5 percent caused by increases in the House maintenance subgroup up by 18.6 per cent
  • Food and Miscellaneous groups also went up by 3.3 percent and 0.5 percent
  • Followed by decreases in Transport, Household Operations and Tobacco & Alcohol group by 4.4 percent, 0.8 percent and 0.01 percent

CPI Graph104

Annual Change

From December 2018 quarter to December 2019 quarter:

  • The consumer price index (CPI) increased by 2.4 percent
  • Annual Average Inflation Rate increased by 0.8 percent
  • Food group increased by 5.6 percent
  • Alcohol & Tobacco increased by 1.8 percent
  • Transport group prices decreased by 3.4 percent

  CPI Graph404

More on Consumers Price Index...

Information about CPI

The Consumer Price Index covers price changes of the basket of goods and services consumed by all households on Rarotonga (the main island).

The base year is 2006. Prices are collected for 205 items and from selected outlets around Rarotonga. Individual prices are combined using weights from the Household Expenditure Survey (HES) conducted in 2004/5. The HES information was used to select the basket of goods and services.

The inclusion of an underlying measure is a recent improvement and it is published at the same time as the CPI. The underlying measure excludes items of a highly volatile nature, items that are subject to policy changes.

It excludes all locally produced fruits, vegetables, meat and fish, international airfares, mortgage interest, government rent, postal and telecommunication charges, electricity charges, tobacco and alcohol, petrol and diesel.

The CPI is computed using the Laspeyres price index formula


pdfCPI_Statistics_Report_201904.pdf 944 KB

xlsxCPI_Statistics_Tables_201904.pdf 161 KB