| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 8008 |
72.9%
|
| 2 | I have already stopped smoking cigarettes | 1159 |
10.6%
|
| 3 | Yes | 1278 |
11.6%
|
| 4 | No | 534 |
4.9%
|
| Sysmiss | 90 |