Marijuana Use in Lifetime, by Grade Level

Year(s): 2015-2017

West Contra Costa Unified (School District)Percent
Grade Level0 Times1 Time2 Times3 Times4-6 Times7 or More Times
7th Grade94.5%2.3%0.7%0.5%0.6%1.4%
9th Grade79.8%4.5%2.9%2.3%2.7%7.8%
11th Grade68.4%5.3%4.1%3.1%3.5%15.6%
Non-Traditional45.5%5.2%5.9%4.2%7.0%32.2%