| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2809 |
65.7%
|
| 2 | I have not stopped smoking | 451 |
10.5%
|
| 3 | Less than 1 month | 146 |
3.4%
|
| 4 | 1-3 months | 139 |
3.3%
|
| 5 | 4-11 months | 147 |
3.4%
|
| 6 | One year | 177 |
4.1%
|
| 7 | 2 years | 165 |
3.9%
|
| 8 | 3 years or longer | 241 |
5.6%
|
| Sysmiss | 45 |