I once read an article from The Family Planning Association written in our local newspaper back in the 90's where it stated that while gays were 3% of the population, they committed 40% of the sex crimes on children....so later, when I found the net, I was able to track down the reports that claimed that.....
If you're interested in crimes on children, then you'll do your own research.....
the problem with surveys is that when one comes out, another disputing it will follow then the sources are attacked, "oh, that is from the democrats" or "that is propaganda from the republicans" or, "that is the catholic churches view"...or that is from the christian fundies...and so on.....but here are 3 links and if you thoroughly read them without prejudice you can inform yourself......I did!!!.... after I recalled an article published in the newspaper some years back when I first heard those stats.....from the parental planning association which happens to be catholic, [I'm not catholic] and everyone knows their record on priests molesting children. That is now widely reported so I doubt they would cover for gays when they wrote their article in the paper reporting the stats.....
http://www.traditionalvalues.org/urban/one-a.php
http://www.familyresearchinst.org/fri_edupamphlet2.html
http://www.mako.org.au/home.html