Since the late 1990s, when I was in my early 20s and started to seriously get into being a hardcore slut, I've get approximate records. Not exactly in great detail or meticulous, but a very basic load tally. First done in hard copy, but now in spreadsheet. Since that time I've been around 7800 cocks in my ass. I've fucked 1300 asses (some of the topping and bottoming overlap, so it's not necessarily 9100 all up).
So that's around 400 or so guys a year on average. Obviously some years less, some more. Early on many years would have been lucky to reach over 100, but later on much more. Strangely enough, 2020 was my most sexually active year, with an approximately total of 720 cocks! I think what made it easier was that less guys were willing to hook up randomly, so those who did could get quite high totals.