How common is cheating really?

I am in my late 30s and have been in a marriage with my husband for almost a decade, I have never cheated on any partner, never will, to my knowledge I’ve never been cheated on.

It isn’t in my blood, it is a foreign idea, I am naive. Somehow my friendships are honest simple types too.

we all know about cheats who were found out: How many more people get away with it? Do you know people who were never found out? Are you a cheat who will take it to their grave? I am asking specifically about the hidden epidemic, no spouse approved exploration or other nonsense