| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3636 |
85.6%
|
| 2 | I no longer smoke | 463 |
10.9%
|
| 3 | No, I smoke but I never mix tobacco with other drugs | 117 |
2.8%
|
| 4 | Yes, but only once or twice | 23 |
0.5%
|
| 5 | Yes, I have mixed tobacco with other drugs more than twice | 8 |
0.2%
|
| Sysmiss | 15 |