This last year I'd say... 0.43 per week or about ten beers all in all
I've no interest in going out to drink and all though it can be kind of nice to just sit back home and sip a beer or two, I never think about it and hence it never happens. It's also a question of money. Since I've decided to try to avoid lending money from the state to pay for my living costs during my studies, alcohol just isn't a very high priority