Water supply inflation: annual rate by year since 1989
21.8%
9.0%
The ONS gives an annual CPI rate for water supply (COICOP 04.4.1) for every year from 1989 to 2025: 37 years. In 2025 prices in this class were 21.8% higher on average than in 2024, against 3.4% for all CPI items. The highest yearly rate in the series is 21.8% in 2025; the lowest is -3.2% in 2000. The rate for this class was higher than the all-items CPI rate in 26 of the 37 years where both are published. Prices in this class fell on average in 3 years. The index (2015 = 100) stood at 100.0 in 2015 and 156.9 in 2025.
Water supply inflation by year
| Year | Annual rate | Index (2015 = 100) | CPI inflation that calendar year (ONS, D7G7) | Difference |
|---|---|---|---|---|
| 2025 | 21.8% | 156.9 | 3.4% | +18.4 points |
| 2024 | 7.4% | 128.8 | 2.5% | +4.9 points |
| 2023 | 7.8% | 119.9 | 7.3% | +0.5 points |
| 2022 | 3.9% | 111.3 | 9.1% | -5.2 points |
| 2021 | 1.5% | 107.1 | 2.6% | -1.1 points |
| 2020 | -0.6% | 105.6 | 0.9% | -1.5 points |
| 2019 | 2.6% | 106.2 | 1.8% | +0.8 points |
| 2018 | 2.0% | 103.5 | 2.5% | -0.5 points |
| 2017 | 1.2% | 101.5 | 2.7% | -1.5 points |
| 2016 | 0.2% | 100.2 | 0.7% | -0.5 points |
| 2015 | -0.9% | 100.0 | 0.0% | -0.9 points |
| 2014 | 2.0% | 100.9 | 1.5% | +0.5 points |
| 2013 | 3.6% | 98.9 | 2.6% | +1.0 points |
| 2012 | 5.1% | 95.5 | 2.8% | +2.3 points |
| 2011 | 4.0% | 90.9 | 4.5% | -0.5 points |
| 2010 | 2.6% | 87.4 | 3.3% | -0.7 points |
| 2009 | 4.8% | 85.1 | 2.2% | +2.6 points |
| 2008 | 5.8% | 81.3 | 3.6% | +2.2 points |
| 2007 | 6.1% | 76.8 | 2.3% | +3.8 points |
| 2006 | 7.5% | 72.4 | 2.3% | +5.2 points |
| 2005 | 11.6% | 67.4 | 2.1% | +9.5 points |
| 2004 | 5.2% | 60.4 | 1.3% | +3.9 points |
| 2003 | 3.2% | 57.4 | 1.4% | +1.8 points |
| 2002 | 1.6% | 55.6 | 1.3% | +0.3 points |
| 2001 | 1.2% | 54.7 | 1.2% | – |
| 2000 | -3.2% | 54.1 | 0.8% | -4.0 points |
| 1999 | 4.0% | 55.8 | 1.3% | +2.7 points |
| 1998 | 4.9% | 53.7 | 1.6% | +3.3 points |
| 1997 | 3.6% | 51.2 | 1.8% | +1.8 points |
| 1996 | 3.7% | 49.4 | 2.4% | +1.3 points |
| 1995 | 5.4% | 47.7 | 2.6% | +2.8 points |
| 1994 | 6.6% | 45.2 | 2.0% | +4.6 points |
| 1993 | 8.8% | 42.5 | 2.5% | +6.3 points |
| 1992 | 12.5% | 39.0 | 4.2% | +8.3 points |
| 1991 | 18.5% | 34.7 | 7.5% | +11.0 points |
| 1990 | 14.4% | 29.3 | 7.0% | +7.4 points |
| 1989 | 15.3% | 25.6 | 5.2% | +10.1 points |
ONS series D7I5, index D7DR. About these tables · CSV
Latest monthly rates
| Month | 12-month rate |
|---|---|
| August 2026 | 9.0% |
| July 2026 | 9.0% |
| June 2026 | 9.0% |
| May 2026 | 9.0% |
| April 2026 | 9.0% |
| March 2026 | 26.4% |
| February 2026 | 26.4% |
| January 2026 | 26.4% |
| December 2025 | 26.4% |
| November 2025 | 26.4% |
| October 2025 | 26.4% |
| September 2025 | 26.4% |
| August 2025 | 26.4% |
| July 2025 | 26.4% |
| June 2025 | 26.4% |
| May 2025 | 26.4% |
| April 2025 | 26.4% |
| March 2025 | 7.0% |
| February 2025 | 7.0% |
| January 2025 | 7.0% |
| December 2024 | 7.0% |
| November 2024 | 7.0% |
| October 2024 | 7.0% |
| September 2024 | 7.0% |
| August 2024 | 7.0% |
Related pages
Sources and receipts
- Consumer price inflation time series (MM23), Office for National Statistics.
File: mm23.csv. Read 2026-10-15. SHA-256
1b78749ea634755b83064d88f4fc6f7dd177e0c41d8b573c9d8172b8d3fff641