June 16, 2017, the CDC published this report.  It was provided to us by the HHS Office of External and Intergovernmental Affairs, Center for Faith-based and Neighborhood Partnerships:

The Centers for Disease Control and Prevention’s annual report on youth and tobacco found that 11.3 percent of high school students used e-cigarettes in 2016, compared with 16 percent the year before. That’s the first drop since the CDC started keeping track of e-cigarettes in 2011. In addition, just 8 percent of high-schoolers smoked cigarettes last year, while a little over 20 percent reported using “any tobacco product,” which includes cigars, hookahs, pipes, smokeless tobacco and small, leaf-wrapped cigarettes called bidis, as well as regular and e-cigarettes. (Also see Teenagers’ tobacco use hits a record low, with a sharp drop in e-cigarettes Washington Post //Laurie McGinley and E-cigarette use among youth drops for 1st time in 6 years,USA Today // Sarah Toy)