| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1633 |
89.8%
|
| 2 | I have not stopped smoking | 40 |
2.2%
|
| 3 | 1-3 months | 37 |
2%
|
| 4 | 4-11 months | 15 |
0.8%
|
| 5 | One year | 9 |
0.5%
|
| 6 | 2 years | 13 |
0.7%
|
| 7 | 3 years or longer | 72 |
4%
|
| Sysmiss | 16 |