the shares of U.S. 10th and 12th graders
who say they have vaped nicotine in the past month has more than doubled since 2017
Source:Pew Research Center
From 2017 to 2019, the shares who had vaped nicotine increased among 12th graders (11% to 25%). It also increased among 10th graders (8% to 20%) and eighth graders (4% to 9%), according to preliminary data from the University of Michigan's Monitoring the Future survey released in September 2019.