| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1592 |
79.4%
|
| 2 | I have not stopped smoking | 91 |
4.5%
|
| 3 | 1-3 months | 153 |
7.6%
|
| 4 | 4-11 months | 48 |
2.4%
|
| 5 | One year | 56 |
2.8%
|
| 6 | 2 years | 23 |
1.1%
|
| 7 | 3 years or longer | 42 |
2.1%
|
| Sysmiss | 26 |