This has come up on a few threads on this section of late, so I thought it might be good to have a place to put some links. Please add to the thread if you find stats that might be useful in this area.
The Fawcett Society has general information about equality:
www.fawcettsociety.org.uk/index.asp
Here is a blog called familyinequality, whose Sept 10 post shows that in 2010 in the US, 28% of wives aged 25-54 earned more than their husbands, with 38% of working wives earning more than their husbands. Where the wife earns more, the most common percentage is that she earns 50-59% of the household income.
familyinequality.wordpress.com/
This report from the DWP for 2009/10 shows gender splits (p75 onwards) of part time/full time workers, working types e.g. professional, skilled trade etc.
research.dwp.gov.uk/asd/frs/2009_10/frs_2009_10_report.pdf
Article from the Guardian about the gender pay gap:
"On average, women in the UK earn about 15% less than men."
www.guardian.co.uk/commentisfree/2012/jun/16/gender-pay-gap-audits