| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2311 |
79.4%
|
| 2 | I no longer smoke | 225 |
7.7%
|
| 3 | No, I smoke but I never mix tobacco with other drugs | 269 |
9.2%
|
| 4 | Yes, but only once or twice | 47 |
1.6%
|
| 5 | Yes, I have mixed tobacco with other drugs more than twice | 57 |
2%
|
| Sysmiss | 22 |