| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3547 |
81.4%
|
| 2 | I no longer smoke | 653 |
15%
|
| 3 | No, I smoke, but I never mix tobacco with other drugs | 116 |
2.7%
|
| 4 | Yes, but only one time | 31 |
0.7%
|
| 5 | Yes, I have mixed tobacco and other drugs on several occasions | 9 |
0.2%
|
| Sysmiss | 46 |