| Value | Category | Cases | |
|---|---|---|---|
| 1 | INJECT | 762 |
12.5%
|
| 2 | SMOKE (AS IN CIGARETTE) | 144 |
2.4%
|
| 3 | EAT/DRINK | 5103 |
83.4%
|
| 4 | SNIFF | 37 |
0.6%
|
| 5 | TINTOIL/CHASING | 30 |
0.5%
|
| 9 | DON'T KNOW | 44 |
0.7%
|
| Sysmiss | 3232 |