| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1688 |
67.1%
|
| 2 | I am an ex-smoker | 367 |
14.6%
|
| 3 | I am an occasional smoker | 402 |
16%
|
| 4 | I smoke frequently | 53 |
2.1%
|
| 5 | I smoke daily | 5 |
0.2%
|
| Sysmiss | 25 |