Figure 16.1. Percentage of students in grades 9—12 who reported using marijuana at least one time during the previous 30 days, by location and sex: Various years, 1993

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Indicators of School Crime and Safety: 2011

NCES 2012-002
February 2012

List of Figures

Figure 16.1.

Percentage of students in grades 9—12 who reported using marijuana at least one time during the previous 30 days, by location and sex: Various years, 1993—2009

NOTE: "On school property" was not defined for survey respondents. The term "anywhere" was not used in the YRBS questionnaire; students were simply asked how many times during the past 30 days they used marijuana.
SOURCE: Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Youth Risk Behavior Surveillance System (YRBSS), various years, 1993—2009.