I don't have a percentage.
I can tell you from our personal experience at our clinic that we have a number of youth, which is broadly defined now to include ages 16 to 25. The vast majority of people who attend our clinic are people who use drugs and who may use them in a riskier fashion or maybe in a fashion that's less predictable. They would use stimulants and also opioids, one or the other, and not often, so they would use intermittently.