| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2030 |
86.1%
|
| 2 | I no longer smoke cigarettes | 247 |
10.5%
|
| 3 | No, I smoke, but I never mix with other drugs | 61 |
2.6%
|
| 4 | Yes, but only once | 15 |
0.6%
|
| 5 | Yes, I mixed with other drugs more than twice | 6 |
0.3%
|
| Sysmiss | 27 |