I thought you might be interested in some Wisconsin Department of Public Instruction (DPI) statistics regarding high school students:
Wisconsin Youth Risk Behavior Survey
The Wisconsin Youth Risk Behavior Survey (YRBS) is conducted as part of a national effort by the U.S. Centers for Disease Control and Prevention to monitor health-risk behaviors of the nation's high school students. These behaviors, in turn, result in the most significant causes of both mortality and morbidity during youth and adulthood. The behaviors monitored by the Wisconsin YRBS include traffic safety; weapons and violence; suicide; tobacco use; alcohol and other drug use; sexual behavior; and diet, nutrition and exercise.
The Department of Public Instruction (DPI) has administered the YRBS every two years beginning with 1993. The YRBS is administered to students in Wisconsin's public high schools. Survey procedures were designed to protect the privacy of students by allowing anonymous and voluntary participation. Local parent permission procedures were followed before administration, including informing parents that their child's participation was voluntary.
You can view the 2011 Wisconsin Youth Risk Behavior Survey Executive Summary here
and find additional information here