This graph shows the share of students in grades 9-12 who reported that they were using marijuana during the previous 30 days before the survey in 2017. In 2017, about 4.7 percent of the male students stated that they consumed marijuana 40 times or more in the last 30 days.
Survey time period
Students in grades 9–12
Indicators of School Crime and Safety: 2018
US Department of Education; US Department of Justice
Indicators of School Crime and Safety: 2018, page 195