| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2551 |
88.9%
|
| 2 | I have not stopped smoking | 87 |
3%
|
| 3 | 1-3 months | 78 |
2.7%
|
| 4 | 4-11 months | 29 |
1%
|
| 5 | One year | 19 |
0.7%
|
| 6 | 2 years | 16 |
0.6%
|
| 7 | 3 years or longer | 89 |
3.1%
|
| Sysmiss | 9 |