Top 10 List on Ten Most Cannabis Using Nations in the World
#1 New Zealand 22.23%
#2 Australia 17.93%
#3 United States 12.3%
#4 United Kingdom 9%
#5 Switzerland 8.5%
#6 Ireland 7.91%
#7 Spain 7.58%
#8 Canada 7.41%
#9 Netherlands 5.24%
#10 Belgium 5.01%
DEFINITION: Percentage share of people who have used cannabis,
SOURCE: OECD