From a just-published report by the World Health Organization. The Economist sums things up:
The biggest boozers are mostly found in Europe and in the former Soviet states. Moldovans are the most bibulous, getting through 18.2 litres each, nearly 2 litres more than the Czechs in second place. Over 10 litres of a Moldovan’s annual intake is reckoned to be ‘unrecorded’ home-brewed liquor, making it particularly harmful to health. Such moonshine accounts for almost 30% of the world’s drinking. The WHO estimates that alcohol results in 2.5m deaths a year, more than AIDS or tuberculosis. In Russia and its former satellite states one in five male deaths is caused by drink.
Information-laden country-by-country PDFs are here.