Even still, average doesn’t really tell you that much. If the average consumption for (let’s say) Australia was 11.0 liters/year, does that mean everyone drank about 11 liters a year, or were half of them tea-totallers, and half of them drank 22 liters a year?

The most conservative estimates of how much alcohol is dangerous (assuming you don’t take it all at once and drive into a tree, etc.) is 40 ml in a day.

By that logic, a perfectly happy and robust person could have their four beers over the course of a day, every day, and clock in at a staggering 14.6 liters per year, while some binging frat boy could go out every other friday during the school year and slam 16 shots in a row and come up below 12.5 liters a year.