The gender pay gap for full-time workers is entirely in favour of men in every occupation, a new study reveals.
Differences in pay are small at younger ages, but from 40 onwards they widen, reaching a peak between 50 and 59, said the Office for National Statistics (ONS).
Occupations with the smallest pay gap have almost equal employment levels between men and women, the research found.
Between 2011 and 2017, men's pay has increased by 10.4% to a median rate of £14.48 an hour compared with a 12% rise for women to £13.16, said the ONS.
On average, men were paid £1.32 an hour more than women last year, a gap of 9.1%.
Almost three out of four employees in the highest paid occupations, such as chief executives, were men, said the report.
The increased pay gap for older women could be explained by having time time off work, possibly to have children, it was suggested.
Dawn Butler, Shadow Minister for Women and Equalities, said: "The findings are a damning indictment on the Government's failure to tackle the gender pay gap.
"While the Government claims progress, this latest analysis exposes severe work inequalities faced by women across the country and it is clear that we need urgent action to address it.
"This year marks 100 years since some women were allowed to vote for the first time. Although much has been achieved since this historic moment, there is still a lot of progress to be made in terms of gender equality and achieving equal pay is one of them."