it also correlates with countries where rape is taken seriously as a crime and victims are protected rather than persecuted.. thus rape is more commonly reported to police.
Me thinks USA is number 1 only because they have the resources to record these statistics. I mean, if South Africa makes number 2, why doesn't none of their neighbours appear? Is it because there are less rapes there, or is it because the laws might not care about rape or that they just don't record these incidents?