| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 871 |
45.9%
|
| 2 | I have not stopped smoking | 327 |
17.2%
|
| 3 | 1-3 months | 296 |
15.6%
|
| 4 | 4-11 months | 120 |
6.3%
|
| 5 | One year | 68 |
3.6%
|
| 6 | 2 years | 63 |
3.3%
|
| 7 | 3 years or longer | 151 |
8%
|
| Sysmiss | 97 |