Swipe left or right to scroll. Monitoring the Future Study: Trends in Prevalence of MDMA for 8th Graders, 10th Graders, and 12th Graders; 2020 (in percent)* Drug Time Period 8th Graders 10th Graders 12th Graders MDMA Lifetime 1.7 2.6 3.6 Past Year 0.8 1.2 1.8 Past Month 0.3 0.5 0.8 February 5, 2020
