| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2716 |
53.2%
|
| 2 | I have not stopped smoking | 1054 |
20.6%
|
| 3 | 1-3 months | 553 |
10.8%
|
| 4 | 4-11 months | 259 |
5.1%
|
| 5 | One year | 226 |
4.4%
|
| 6 | 2 years | 138 |
2.7%
|
| 7 | 3 years or longer | 163 |
3.2%
|
| Sysmiss | 44 |