| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2376 |
82.9%
|
| 2 | 0 times | 232 |
8.1%
|
| 3 | 1 to 3 times | 205 |
7.2%
|
| 4 | 4 or more times | 53 |
1.8%
|
| Sysmiss | 27 |