Before 15 it was nothing. 15 to 16 it was one time. 17-23 it was about 100 different girls, some many times. (20ish in the west, the rest in Asia lol). Now I've been married for almost half a decade, it happens twice every week or two. I'm alright with that.
I've been with someone for the past 4 and a half years. Some times it's twice a week sometimes it's multiple times a day. It usually depends on how busy we both are.