Drug use of high school seniors by race, 1980, 1993, 2009
| 1980 | 1993 | 2009 | |
|---|---|---|---|
| White (cocaine) | 5.4% | 1.2 | 1.2 |
| Black (cocaine) | 2.0 | 0.4 | 0.2 |
| White (marijuana) | 34.2 | 16.7 | 21.2 |
| Black (marijuana) | 26.5 | 10.8 | 20.6 |
Source: Author's calculation of National Center for Health Statistics (2013)