| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3120 |
91.5%
|
| 2 | I no longer smoke | 192 |
5.6%
|
| 3 | No, I smoke but I never mix tobacco with other drugs | 61 |
1.8%
|
| 4 | Yes, but only once or twice | 24 |
0.7%
|
| 5 | Yes, I have mixed tobacco with other drugs more than twice | 14 |
0.4%
|
| Sysmiss | 39 |