I mean, that one can only answer this question statistically. Because the masturbation behavior is dependent on age.
I am 67 years old and masturbate since I was 9 Age on a regular basis daily. (For many years I have masturbated regularly three times daily.) That's 59 years. In that time I have masturbated about 27 100 times. Even now I masturbate on average 1.9 times per week. I have therefore the exact numbers because I have had interest from a sexual diary. Check out the link at times, I'm Mr. Z.
http://www2.hu-berlin.de/sexology/GESUND/ARCHIV/MAY_99.HTM
I've tried (out of interest) get along without masturbation at the age of 23 years, 21 days I have endured, it was hell.