| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2648 |
65.8%
|
| 2 | I have not stopped smoking | 529 |
13.1%
|
| 3 | 1-3 months | 332 |
8.3%
|
| 4 | 4-11 months | 156 |
3.9%
|
| 5 | One year | 138 |
3.4%
|
| 6 | 2 years | 91 |
2.3%
|
| 7 | 3 years or longer | 130 |
3.2%
|
| Sysmiss | 18 |