| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1596 |
90.3%
|
| 2 | I have not stopped smoking | 66 |
3.7%
|
| 3 | 1-3 months | 30 |
1.7%
|
| 4 | 4-11 months | 27 |
1.5%
|
| 5 | One year | 15 |
0.8%
|
| 6 | 2 years | 13 |
0.7%
|
| 7 | 3 years or longer | 20 |
1.1%
|
| Sysmiss | 24 |