| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 6542 |
76%
|
| 2 | I have not stopped smoking | 475 |
5.5%
|
| 3 | 1-3 months | 533 |
6.2%
|
| 4 | 4-11 months | 266 |
3.1%
|
| 5 | One year | 287 |
3.3%
|
| 6 | 2 years | 182 |
2.1%
|
| 7 | 3 years or longer | 325 |
3.8%
|
| Sysmiss | 125 |