| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2038 |
89.6%
|
| 2 | I have not stopped smoking | 52 |
2.3%
|
| 3 | 1-3 months | 56 |
2.5%
|
| 4 | 4-11 months | 17 |
0.7%
|
| 5 | One year | 25 |
1.1%
|
| 6 | 2 years | 15 |
0.7%
|
| 7 | 3 years or longer | 72 |
3.2%
|
| Sysmiss | 11 |