Progress in closing the gender pay gap appears to be "grinding to a halt", according to a report ‘How fair is Britain’, published today by the Equality and Human Rights Commission (EHRC). EHRC says that on average women earned 16% less than men, widening to 27% for women aged 40.
http://www.equalityhumanrights.com/news/2010/october/commission-launches-landmark-report-how-fair-is-britain/