Kel, I don't know where you see the WAG. Here are the original sources for the statistics. If you disagree with the validity of these sources, then please do post alternatives.
- US: http://services.law.ucla.edu/william...LGBT-Final.pdf
- UK: http://www.bbc.co.uk/news/uk-11398629
- Australia: "Sex in Australia - The Australian study of health and relationships", Australian Research Centre in Sex, Health and Society. (Published as the Australian and New Zealand Journal of Public Health vol 27 no 2.)
- Canada: http://www.statcan.gc.ca/daily-quoti...40615b-eng.htm
You can look at the references below the article for the rest.