More Mexican Americans use drugs than any other group: General Social Survey respondents (N=1839) were asked if they had used illegal drugs in the past year. Here are the percentages who answered yes by their ethnic background:
Percent who used illegal drugs in the past year:
This accords with other survey data which indicate illicit drug use is high for Native Americans and Mex-Ams, moderate for whites, and low for blacks. Something new is that use is lower for whites from Catholic countries.