What's the story behind this data? How many surveyed, how many men vs. women? I can't responsibly upvote this without knowing whether or not it's a sound study.
Wellesley College is an all-women school, so I would be surprised if there were any male participants.
As for the study itself, I am sceptical as well. The survey was surely studying self-reported virginity, and so has all the problems that goes along with that. Plus, they don't even cite a paper.
