Using WHO data, I calculated the cross-national correlation between annual alcohol consumption and suicide rates. For 101 countries, it is .58--a strong assocation. Countries with high levels of consumption have much more suicide. Eastern Europe illustrates this well. The average person there drinks roughly 15 liters of (pure) alcohol per year, and suicide rates are two or three times the average.
Such a finding supports the socially conservative view that drinking immoderately (or at all) needs to be discouraged.