| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 6819 |
68.4%
|
| 2 | I have not stopped smoking | 798 |
8%
|
| 3 | 1-3 months | 705 |
7.1%
|
| 4 | 4-11 months | 333 |
3.3%
|
| 5 | One year | 333 |
3.3%
|
| 6 | 2 years | 304 |
3%
|
| 7 | 3 years or longer | 680 |
6.8%
|
| Sysmiss | 20 |