| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 4063 |
68.1%
|
| 2 | An ex-smoker | 928 |
15.6%
|
| 3 | An occasional smoker | 405 |
6.8%
|
| 4 | A frequent smoker | 181 |
3%
|
| 5 | A daily smoker | 387 |
6.5%
|
| Sysmiss | 81 |