I wouldnt be able to say in units but not very much, only really drink at the weekend, maybe 5 or 6 half litre beers or a bottle or two of lidl wine/ pre-made mojito.
Even at £3.50 a pint or whatever, one of the pleasant things about coming back to the UK is how much cheaper beer is there than in Holland.
Yeah true 2.50e for less than half a pint, usually of shit heineken. Nowhere has cider aswell which ruined drinking here for me really.
Only place ive found the good stuff is a small squatted restaurant in oost Amsterdam. westons organic (!!!) and loads of trappist beers all very cheap, 2.70 suggested donation for bottle of westons which is cheaper than the UK, cheap food aswell, only open mondays and thursdays tho.