| Value | Category | Cases | |
|---|---|---|---|
| 1 | INJECT | 537 |
22.3%
|
| 2 | SMOKE (AS IN CIGARETTE) | 1184 |
49.1%
|
| 3 | EAT/DRINK | 182 |
7.6%
|
| 4 | SNIFF | 291 |
12.1%
|
| 5 | TINTOIL/CHASING | 190 |
7.9%
|
| 9 | DON'T KNOW | 26 |
1.1%
|