| Value | Category | Cases | |
|---|---|---|---|
| 1 | INJECT | 29 |
0.5%
|
| 2 | SMOKE (AS IN CIGARETTE) | 90 |
1.7%
|
| 3 | EAT/DRINK | 5050 |
94.9%
|
| 4 | SNIFF | 71 |
1.3%
|
| 5 | TINTOIL/CHASING | 28 |
0.5%
|
| 9 | DON'T KNOW | 56 |
1.1%
|
| Sysmiss | 4028 |