Source: Drug Abuse Warning Network (2003 Update)
| DAWN Drug Mentions: Drug Use Motive (Percents) | |||||
|---|---|---|---|---|---|
| Year | Psychic Effects | Dependence | Suicide | Other | Unknown |
| 1995 | 9.0 | 79.2 | 3.2 | 0.1 | 8.5 |
| 1996 | 9.4 | 78.2 | 3.5 | 0.1 | 8.8 |
| 1997 | 7.4 | 79.9 | 4.4 | 0.2 | 8.1 |
| 1998 | 6.5 | 81.1 | 4.0 | 0.2 | 8.2 |
| 1999 | 7.0 | 81.8 | 3.3 | 0.2 | 7.6 |
| 2000 | 6.0 | 83.7 | 2.9 | 0.5 | 6.9 |
| 2001 | 7.6 | 82.5 | 3.7 | 0.2 | 6.0 |
| 2002 | 8.1 | 81.8 | 3.6 | 0.5 | 6.0 |