| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1523 |
70.9%
|
| 2 | An ex-smoker | 283 |
13.2%
|
| 3 | An occasional smoker | 218 |
10.1%
|
| 4 | A frequent smoker | 55 |
2.6%
|
| 5 | A daily smoker | 70 |
3.3%
|
| Sysmiss | 6 |