Rresearchers wanted a world wide "index of promiscuity." So they surveyed 14 thousand people in 48 countries, and asked them questions like "how many sexual partners have you had?" and "how many one night stands?"
The results appear to show that Finns and other Europeans are the most promiscuous, and more conservative countries such as Bangladesh, were predictably less likely to engage in casual sex.
The good old U.S. of A. barely made the top 50th percentile. But maybe that's a good thing?