| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2227 |
88.2%
|
| 2 | No | 94 |
3.7%
|
| 3 | One to three times | 140 |
5.5%
|
| 4 | Four times or more | 65 |
2.6%
|
| Sysmiss | 21 |