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CSO Frontier Series outputs may use new methods which are under development and/or data sources which may be incomplete, for example new administrative data sources. Particular care must be taken when interpreting the statistics in this release.
Learn more about CSO Frontier Series outputs.
The Consumer Price Index (CPI) subindices were combined with detailed expenditure data from the 2015/16 Household Budget Survey (HBS) to calculate an estimated inflation rate in the 63 months from December 2016, for the following groups:
The method used is described in the Appendix.
The following household groups were estimated to have experienced higher inflation than the overall CPI rate from December 2016 to March 2022 (63 months):
The following categories of household were estimated to have experienced lower inflation than the CPI over the period from December 2016 to March 2021 but to have had higher inflation than the overall CPI in the following 12 months from March 2021 to March 2022:
Figure 2.1 shows the difference from the overall CPI for different household groups for the 63 months from December 2016 to March 2022. For example, overall CPI inflation during this period of more than five years was 9.6% but inflation estimated for households in the lowest income decile was 1.8 percentage points higher, at 11.4%.
| Indices | Estimated difference |
|---|---|
| 1st (Lowest) Income Decile | 1.8 |
| 2nd Income Decile | 1.8 |
| 3rd Income Decile | 1 |
| 4th Income Decile | 0.6 |
| 5th Income Decile | 0.200000000000001 |
| 6th Income Decile | 0 |
| 7th Income Decile | -0.0999999999999996 |
| 8th Income Decile | -0.699999999999999 |
| 9th Income Decile | -0.5 |
| 10th (Highest) Income Decile | -0.799999999999999 |
| Owned Outright | -0.6 |
| Owned with Mortgage | -1.2 |
| Rented from Local Authority | 1.9 |
| Rented from Private Owner | 2.8 |
| Urban | 0.200000000000001 |
| Rural | -0.4 |
| Reference Person aged under 35 | 1.5 |
| Reference Person aged 35 to 64 | -0.299999999999999 |
| Reference Person aged 65 and over | 0 |
| 1 adult | 1.8 |
| 1 adult with children | 2.3 |
| 2 adults | 0.6 |
| 2 adults with 1 to 3 children | -0.4 |
| 3 plus adults | -0.299999999999999 |
| Other households with children | -1.6 |
Figure 2.2 shows the difference from the overall CPI for different household groups for the 12-month period from March 2021 to March 2022. For example, overall CPI inflation during those 12 months was 6.7% but inflation estimated for households in the lowest income decile was 0.8 percentage points higher, at 7.5%.
| Indices | Estimated difference |
|---|---|
| 1st (Lowest) Income Decile | 0.8 |
| 2nd Income Decile | 0.899999999999999 |
| 3rd Income Decile | 0.6 |
| 4th Income Decile | 0.6 |
| 5th Income Decile | 0.399999999999999 |
| 6th Income Decile | 0.2 |
| 7th Income Decile | -0.100000000000001 |
| 8th Income Decile | -0.3 |
| 9th Income Decile | -0.3 |
| 10th (Highest) Income Decile | -0.600000000000001 |
| Owned Outright | 0.3 |
| Owned with Mortgage | -0.4 |
| Rented from Local Authority | 0.6 |
| Rented from Private Owner | 0.3 |
| Urban | -0.2 |
| Rural | 0.6 |
| Reference Person aged under 35 | -0.100000000000001 |
| Reference Person aged 35 to 64 | 0 |
| Reference Person aged 65 and over | 0.5 |
| 1 adult | 1 |
| 1 adult with children | 0.5 |
| 2 adults | 0.2 |
| 2 adults with 1 to 3 children | -0.100000000000001 |
| 3 plus adults | -0.2 |
| Other households with children | -0.4 |
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