Since losing my virginity, 6 months or so.
In my marriage, outside of pregnancy and postpartum - which frankly didn’t slow things down much because I still prioritized it - a couple of weeks? But typically at least 1-2x a week. My DH has a VERY high libido so mostly it’s to keep him happy, but I enjoy it to an extent. If I only had sex when I really wanted to it would be sporadic - maybe a couple of times a month.