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Release: Consumer Price Indices, December 2011

Released: 17 January 2012 Next edition: 14 February 2012


Darren Morgan


Telephone: +44 (0)1633 456900

Categories: Economy, Prices, Output and Productivity, Price Indices and Inflation, Consumer Price Indices, Consumer Prices Index, Retail Prices Index

Frequency of release: Monthly

Language: English

Geographical coverage: UK

Geographical breakdown: Country

  • CPI annual inflation stands at 4.2 per cent in December 2011, down from 4.8 per cent in November.

    The last time there was a larger fall in annual inflation was between November and December 2008. The largest downward pressures to the change in CPI annual inflation between November and December 2011 came from petrol, gas and clothing. The CPI stands at 121.7 in December 2011 based on 2005=100.

  • RPI annual inflation stands at 4.8 per cent in December 2011, down from 5.2 per cent in November.

    This is the largest fall in annual inflation since between May and June 2009. The largest downward pressures to the change in RPI annual inflation between November and December 2011 came from petrol, oil & other fuels, gas and clothing & footwear. Partially offsetting these were upward pressures from car insurance and telephone charges. The RPI stands at 239.4 in December 2011 based on January 1987=100.

Other useful information:

Detailed CPI and RPI Reference Tables (1.18 Mb Excel sheet) : This spreadsheet pulls together the numerous tables that were previously published in the old style Consumer Price Indices Statistical Bulletin and Focus on Consumer Prices publication. A correlation index is included to show the old and new naming conventions and where the tables were previously published for example: RPI All items 1947 -2011 or RP02 & Table 4.1 in Focus is now the new Table 20.

Time series data: Downloadable data sets for CPI and RPI (including equivalent data sets equivalent to RP01, RP02, RP04, RP05, RP07 & RP50).

Personal Inflation Calculator (PIC): This interactive application allows you to enter your own spending patterns to generate a personal inflation figure. (Note - requires an SVG-enabled web browser, such as Firefox, Safari or Chrome). Further information on the PIC, including how the calculator works and how to calculate your personal inflation rate, can be found in the article The Personal Inflation Calculator (476.1 Kb Pdf) .

Further information on the CPI and RPI: Includes details of the methodology used to construct the indices, brief and quick guides to inflation and articles on various aspects of the CPI and RPI.

This release page contains price indices, percentage changes and weights for the Consumer Prices Index (CPI), Retail Prices Index (RPI) and the components that make up these indices. Internationally, the CPI is known as the Harmonised Index of Consumer Prices (HICP).

These National Statistics are produced to high professional standards and released according to the arrangements approved by the UK Statistics Authority.

Content from the Office for National Statistics.
© Crown Copyright applies unless otherwise stated.