| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked in my life | 4488 |
90.5%
|
| 2 | I don't smoke now | 290 |
5.8%
|
| 3 | Yes | 152 |
3.1%
|
| 4 | No | 28 |
0.6%
|
| Sysmiss | 5 |