Orgasm during sex statistic question?

OKAY. I've had this question in my mind for so long. So there's statistics that 50-70% of women orgasm all the time when having sex with a guy. So does this this mean one round? Like keep going until the guy cums? Or one session, like if he cums and then keeps going? Because I don't orgasm before he cums every time, but if I don't, he will keep going until I do. I'm just confused on the statistic and need help😂