| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 450 |
58.7%
|
| 2 | An ex-smoker | 181 |
23.6%
|
| 3 | An occasional smoker | 113 |
14.7%
|
| 4 | A frequent smoker | 13 |
1.7%
|
| 5 | A daily smoker | 10 |
1.3%
|
| Sysmiss | 2 |