The data is also an unbelievable mess. We can work towards drinking from two directions: self report consumption and alcohol sales ought to lead to the same nu

The data is also an unbelievable mess. We can work towards drinking from two directions: self report consumption and alcohol sales ought to lead to the same number. Not perfectly of course - drinks get thrown away, saved as gifts, used to cook, and so on. But last I looked, the ratio of drinks sold to drinking reported in the US was two to one. (I'd love to see the same data for other countries.) So either people understating their drinking by a huge amount, or the studies are undersampling groups that do a lot of drinking. Probably both. We can make some good guesses: minors probably don't admit to their drinking, teetotalers probably self-report more accurately than occasional drinkers, and so on. But it's a gap so big that it's hard to talk confidently about what people here are doing.