Among 12th-graders, the proportion of students who said they had vaped a nicotine product in the 30 days before they took the survey soared from 11% in 2017 to 20.9% in 2018. Among 10th-graders, it jumped from 8.2% in 2017 to 16.1% in 2018, and among eighth-graders it rose from 3.5% last year to 6.1% this year.

Source: Los Angeles Times December 17, 2018 05:03 UTC