Monitoring the Future is a long-term study of substance use and related factors among US adolescents, college students, and adult high school graduates through age 60. These findings identify emerging substance use problems, track substance use trends, publish many scientific findings, and help to inform policy and intervention strategies.

Monitoring the Future: National Survey Results on Drug Use 1975-2020. (2020). 2020 Overview: Key Findings on Adolescent Drug Use. https://monitoringthefuture.org/wp-content/uploads/2022/08/mtf-overview2021.pdf