Yesterday we put togethermaps of illegal drug use from the U.N.'sWorld Drug Report 2012, and now we are going through the data to get a better idea of which countries use which drugs most.

Here is a "Top 12" list of countries with the highest annual prevalence of marijuana use (as a percentage of the population aged 15 to 64):

1) Palau: 24.2%

2) Northern Mariana Islands: 22.2%

3) Guam: 18.4%

4) Italy; New Zealand*: 14.6%

6) Nigeria: 14.3%

7) USA: 14.1%

8) Canada: 12.7%

9) Saint Kitts and Nevis: 11.7%

10) Bermuda: 10.9%

11) Spain: 10.6%

12) Australia**: 10.3%

*aged 16 to 64

** aged 14 +

SEE ALSO: The Top 11 Cocaine-Using Countries In The World >