| Value | Category |
|---|---|
| 2 | No |
| 3 | Inhalants like glue paint thinners benzine or petrol |
| 4 | Methaqualone (Mandrax) |
| 5 | Cocaine |
| 6 | Heroin |
| 7 | Club drugs Specify |
| 8 | Over-the counter drugs Specify |
| 9 | Prescription drugs Specify |
| 93 | Prefer not to answer |
| 96 | Other specify |
| Sysmiss |