| Characteristic | All-employees | Full-time | Part-time |
|---|---|---|---|
| 2025 | 12.8% | 6.9% | -2.9% |
| 2024 | 13.1% | 7.1% | -3% |
| 2023 | 14.2% | 7.5% | -2.5% |
| 2022 | 14.4% | 7.6% | -3.3% |
| 2021 | 15.1% | 7.7% | -3% |
| 2020 | 14.9% | 7% | -3.5% |
| 2019 | 17.4% | 9% | -3.5% |
| 2018 | 17.8% | 8.6% | -4.9% |
| 2017 | 18.4% | 9.1% | -5.3% |
| 2016 | 18.2% | 9.4% | -6.1% |
| 2015 | 19.3% | 9.6% | -6.8% |
| 2014 | 19.2% | 9.6% | -5.5% |
| 2013 | 19.8% | 10% | -5.9% |
| 2012 | 19.6% | 9.5% | -5.5% |
| 2011 | 19.5% | 9.1% | -5.6% |
| 2010 | 19.8% | 10.1% | -4.3% |
| 2009 | 22% | 12.2% | -2.5% |
| 2008 | 22.5% | 12.6% | -3.7% |
| 2007 | 21.9% | 12.5% | -2.2% |
| 2006 | 22.3% | 12.6% | -2.1% |
| 2005 | 22.6% | 13% | -3% |
| 2004 | 25% | 14.1% | -3% |
| 2003 | 25.1% | 14.6% | -1.3% |
| 2002 | 26.9% | 15.5% | -0.6% |
| 2001 | 26.3% | 16.4% | -3.7% |
| 2000 | 26.7% | 16.3% | -3.5% |
| 1999 | 26.9% | 16.4% | -2.6% |
| 1998 | 27.3% | 17.4% | -4% |
| 1997 | 27.5% | 17.4% | 0.6% |
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United Kingdom
1997 to 2025
The source adds the following information regarding methodology: "The gender pay gap is calculated as the difference between average hourly earnings (excluding overtime) of men and women as a proportion of average hourly earnings (excluding overtime) of men’s earnings. It is a measure across all jobs in the UK, not of the difference in pay between men and women for doing the same job."
The source advises caution when comparing data over time due to changes in methodology.
Years with the same methodology provided below:
1997-2004: Original methodology
2004-2006: Revised methodology
2007-2011:SOC00 methodology
2012-2021: SOC10 methodology
2022-2025: SOC20 methodologyÂ
SOC = "Standard Occupational Classification"








