I've made a LOT of semen in my life.. if I do the math it's frightening! It is kind of difficult to get an accurate estimate because if I had another guy around.. the numbers change
Beginning to late twenties: EVERY Day, 2 to 6 times a day! (Record was 10 but not much cum left from 7th on)
Late twenties to now (39 years old) : Every Day, sometimes 3 to 4 times a day!
Now times when I've got a boyfriend or hook up, replace those with sex and blowjobs. But honestly those numbers are closely accurate to the number of ejaculations.. just can't figure exactly how many were with my hand from masturbating. Also, 90% of my masturbation induced ejaculations were swallowed by me, I LOVE cum and get turned on wanking off into my mouth or wiping it off my chest to eat it!
Now that I write all this down.. it's no wonder my friends always tease me and joke that my place always smells like Bleach! ;-)