Table 4.
Cannabis past-month use-days (millions) by demographic groups over time.
| Use-days (millions) |
|||
|---|---|---|---|
| 2002 | 2004 | 2011 | |
| AGE (AMONG ALL USERS) | |||
| 12–17 | 23.2 | 21.3 | 21.9 |
| 18–21 | 44.0 | 42.1 | 54.6 |
| 22–29 | 47.5 | 54.2 | 76.5 |
| 30–49 | 56.6 | 60.7 | 68.1 |
| 50+ | 9.5 | 10.7 | 35.6 |
| RACE/ETHNICITY (AMONG ALL USERS) | |||
| Non-Hispanic white | 133.0 | 134.6 | 169.7 |
| Non-Hispanic black | 26.2 | 27.2 | 39.2 |
| Hispanic | 15.4 | 19.9 | 35.3 |
| Other | 6.1 | 7.3 | 12.4 |
| EDUCATION (AMONG ADULTS) | |||
| Less than high school | 36.4 | 37.9 | 48.9 |
| High school graduate | 53.4 | 57.6 | 83.8 |
| Some college | 48.6 | 48.4 | 69.0 |
| College graduate | 19.1 | 24.0 | 33.0 |
Because NSDUH did not collect data about blunts in 2002 and 2003, use-days may be underestimated for these years. We have included data from 2004 when the questions about blunts were introduced for reference.