| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3465 |
91.8%
|
| 2 | I no longer smoke | 155 |
4.1%
|
| 3 | No, I smoke, but I never mix tobacco with drugs | 103 |
2.7%
|
| 4 | Yes, but only once or twice | 32 |
0.8%
|
| 5 | Yes, I have mixed tobacco with other drugs more than twice | 18 |
0.5%
|
| Sysmiss | 19 |