| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 7996 |
80.4%
|
| 2 | I have not stopped smoking | 402 |
4%
|
| 3 | 1-3 months | 561 |
5.6%
|
| 4 | 4-11 months | 170 |
1.7%
|
| 5 | One year | 232 |
2.3%
|
| 6 | 2 years | 184 |
1.8%
|
| 7 | 3 years or longer | 403 |
4.1%
|
| Sysmiss | 15 |