| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2997 |
76.3%
|
| 2 | I have not stopped smoking | 339 |
8.6%
|
| 3 | 1-3 months | 226 |
5.8%
|
| 4 | 4-11 months | 76 |
1.9%
|
| 5 | One year | 94 |
2.4%
|
| 6 | 2 years | 58 |
1.5%
|
| 7 | 3 years or longer | 136 |
3.5%
|
| Sysmiss | 9 |