According to the survey results, past-month marijuana use for 8th, 10th and 12th graders has hovered between 6.6 – 8.3%, 16.5 – 17.8%, and 28.4 – 29% respectively over the past three years. These rates remain below pre-pandemic levels as well, despite historic highs in adult use. In other words, the data suggest that “whatever is happening with adult-use legalization across the country has not really impacted the younger people,” says Chief Marsha Lopez of the National Institute on Drug Abuse (NIDA)’s epidemiology branch.