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Indicators of School Crime and Safety: 2007
NCES 2008-021
December 2007


Figure 16.1.

Percentage of students in grades 9-12 who reported using marijuana during the previous 30 days, by location and sex: Various years, 1993-2005



Percentage of students in grades 9-12 who reported using marijuana during the previous 30 days, by location and sex: Various years, 1993-2005

NOTE: "On school property" was not defined for survey respondents. The term "anywhere" is not used in the YRBS questionnaire; students are simply asked how many times during the past 30 days they used marijuana. Population sizes from the Digest of Education Statistics, 2005 (NCES 2006-030) for students in grades 9–12 are 13,093,000 students in 1993; 13,697,000 in 1995; 14,272,000 in 1997; 14,623,000 in 1999; 15,061,000 in 2001; 15,723,000 in 2003; and 16,286,000 (projected) in 2005.
SOURCE: Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Youth Risk Behavior Surveillance System (YRBSS), various years, 1993–2005.
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