1 in 3 women worldwide? I'd believe that. There's over a billion muslims, and a good chunk of them happen to view women as property. How about some statistics that are a little more meaningful?
In a self-reported survey (immediately undermines the credibility), only 1 in 5 American women report ever having been a victim of rape. 50% of the time these rapes were committed by a significant other, and 40% of the time by an acquaintance. Granted, the numbers don't add up in that section, so either there's a typo or the surveys used to collect this data were poorly written. Regardless, we'll go with the assumption that the vast majority of rapes are done by SOs or acquaintances. What I want to know is how many of these fall into the moral gray area of intoxicated sex. Depending on who you ask, it's either rape or merely a bad decision. Depending on your definition, you could very easily quadruple or quintuple the number of "victims" of rape, since people get drunk and fuck all the time.