| Value | Category | Cases | |
|---|---|---|---|
| 1 | INJECT | 482 |
27.7%
|
| 2 | SMOKE (AS IN CIGARETTE) | 368 |
21.1%
|
| 3 | EAT/DRINK | 76 |
4.4%
|
| 4 | SNIFF | 672 |
38.6%
|
| 5 | TINTOIL/CHASING | 90 |
5.2%
|
| 9 | DON'T KNOW | 53 |
3%
|
| Sysmiss | 7611 |