When I first, let's just say, discovered jerking off and the Big O, I'd pretty much have to cum daily, probably twice a day at least more than half the time and every now and then, three times. While I may have done it 4-5 times in one day, that was extremely rare.
While that volume was fairly constant the first few years of my penile discovery, once I started having sex with another person, it was more often just once daily, though every few days my wife would crave it a second time or I would masturbate later on when she left the house.
Of course, the older I got, the less it became a daily thing and more a every 2-3 days thing, where it is pretty much today. While once in a blue moon, I will attempt to cum twice in one day, but I have to be really horny and have a lot of free time, so those more than once daily days are pretty much behind me.