| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 6770 |
79.4%
|
| 2 | I no longer smoke | 766 |
9%
|
| 3 | No, I smoke but I never mix tobacco with other drugs | 667 |
7.8%
|
| 4 | Yes, but only once or twice | 186 |
2.2%
|
| 5 | Yes, I have mixed tobacco with other drugs more than twice | 138 |
1.6%
|
| Sysmiss | 75 |