On how many occasions (if any) have you used prescription stimulants, such as Ritalin, Adderall, or Concerta, not prescribed for you by a doctor in your lifetime?
Year : | KDOC-JS ■ | State: ■ |
2016 | — | 3.60 |
2017 | — | 3.30 |
2018 | — | 3.37 |
2019 | — | 3.37 |
2020 | — | 3.39 |