| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1204 |
74.3%
|
| 2 | 0 times | 191 |
11.8%
|
| 3 | 1 to 3 times | 162 |
10%
|
| 4 | 4 or more times | 63 |
3.9%
|
| Sysmiss | 25 |