Social Indicator Comparison Year USA Netherlands Lifetime prevalence of marijuana use (ages 12+) 2001 36.9% 1 17.0% 2 Past month prevalence of marijuana use (ages 12+) 2001 5.4% 1 3.0% 2 Lifetime prevalence of heroin use (ages 12+) 2001 1.4% 1 0.4% 2