| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 3854 |
65.5%
|
| 2 | I have not stopped smoking | 313 |
5.3%
|
| 3 | 1-3 months | 586 |
10%
|
| 4 | 4-11 months | 218 |
3.7%
|
| 5 | One year | 231 |
3.9%
|
| 6 | 2 years | 140 |
2.4%
|
| 7 | 3 years or longer | 545 |
9.3%
|
| Sysmiss | 32 |