| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1128 |
68%
|
| 2 | None | 237 |
14.3%
|
| 3 | 1 to 3 times | 206 |
12.4%
|
| 4 | 4 or more times | 87 |
5.2%
|
| Sysmiss | 109 |