| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2561 |
75.5%
|
| 2 | I have not stopped smoking | 149 |
4.4%
|
| 3 | 1-3 months | 131 |
3.9%
|
| 4 | 4-11 months | 94 |
2.8%
|
| 5 | One year | 89 |
2.6%
|
| 6 | 2 years | 79 |
2.3%
|
| 7 | 3 years or longer | 289 |
8.5%
|
| Sysmiss | 36 |