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 days did they have at least one drink of alcohol during the past 30 days. Population size from the Digest of Education Statistics, 2005 (NCES 2006-030) for students in grades 9–12 is 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), 2005.