| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2651 |
71.1%
|
| 2 | I no longer smoke | 680 |
18.2%
|
| 3 | No, I smoke but I never mix tobacco with other drugs | 217 |
5.8%
|
| 4 | Yes, but only once | 121 |
3.2%
|
| 5 | Yes, I have mixed tobacco with other drugs on more than one occasion | 59 |
1.6%
|
| Sysmiss | 357 |