Some insurers estimated that alcoholism rates rose by 300% as Prohibition continued. Meanwhile, the murder rate went from 6.5 per 100,000 in 1918 before Prohibition to 9.7 per 100,000 in 1933, the year of repeal, nearly a 50% rise. Suggesting that the relationship was likely to be causal, this rate then fell back under 6 per 100,000 by 1942.
