It's hard to tell, because for the last several years, Cobes was drunk before he got on stream. He might only do a few shots for non-live content, but he was already stumbling and a lot more shitfaced than just a fucked up mouth slur.
He might have had a few shows where he was still coherent but starts to go downhill nearly immediately- like he took a few shots and waited until he started to feel it. I think he and Clint were at kind of an impasse, where Clint wanted him to drink less, so to humor him, he'd drink less on stream.
He had completely downed one of those huge Vodka bottles in 3 days (which is known), and that was at least a 1.75ml bottle, so that's 232 mL of pure alcohol a day (80 proof). A beer contains about 18ml of alcohol, so that's over a 12 pack/day.