6 years ago hardly anybody had heard of Fentanyl. % growth is a misleading statistic when you're starting out on the bottom of the S curve. I'm not saying it's not a problem, just that the summary is sensationalized.
Still, opiate deaths now outnumber vehicular deaths, although vehicular death has been dropping. Opiate deaths probably skew young and one might ask: just what percent of, on average, poor impulse control young people are now killed by opiate death?