https://en.wikipedia.org/wiki/List_of_countries_by_prevalence_of_opiates_use https://en.wikipedia.org/wiki/List_of_countries_by_prevalenc... Singapore has the

https://en.wikipedia.org/wiki/List_of_countries_by_prevalence_of_opiates_use https://en.wikipedia.org/wiki/List_of_countries_by_prevalenc... Singapore has the lowest rates in the world. Sometimes regulations have the intended effect.