https://www.sciencedaily.com/releases/2022/03/220331101612.htm

Opioid use in some countries in Africa and South America was less than one tenth of 1% of the rates in wealthier countries in North America, Europe and Australia, according to the findings published in The Lancet Public Health.

Some countries are starting to catch up, as the overall picture is one of gradual geographic convergence in opioid consumption.