It's a bit like my previous posting getting you to do a rough calculation of the amount of semen released over your sexually mature lifetime (roughly from 11 to 91 - 80 years, for the sake of round numbers) . Even based on a lesser average of once a day, and each ejaculation being an average of 10ml (about a teaspoon) the total is surprisingly impressive, being more than enough to fill a bath tub. Do the maths for yourself, and you'll see what I mean.
Geeez you guys like keep track, sounds more like a job than just beatin off. Well have fun with it Peace