| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 3992 |
77%
|
| 2 | I didn't smoke in the past year. | 503 |
9.7%
|
| 3 | Not once. | 292 |
5.6%
|
| 4 | Once. | 191 |
3.7%
|
| 5 | Twice or more often. | 208 |
4%
|
| Sysmiss | 122 |