It goes up and down. I think I've had about 30 pints this month (evenly spread over several evenings; no binges), but I haven't had any alcohol this week and probably won't do until Saturday.
A drinking buddy of mine, who is a senior IT guy at a major bank, goes through 4-6 pints at least six nights a week and often has a few glasses of whisky as a nightcap (by himself, at home); I've never seen him have a soft drink or even a glass of water. The calculator says he's on 20 units a day, so I guess liver failure is inevitable.