The cheapest women’s haircut could be found in South Dakota for $31.43 — almost one and a half times more than the $21.59 paid by men for their cheapest haircut, also in that state.

The study also revealed that a first roll in the hay for men often happens between the ages of 18 and 20. For women, the magic number shrinks to 2 to 3 partners — with only 1 to 2 casual flings.