| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2863 |
73.1%
|
| 2 | I have not quit smoking | 407 |
10.4%
|
| 3 | 1-3 months | 169 |
4.3%
|
| 4 | 4-11 months | 134 |
3.4%
|
| 5 | One year | 135 |
3.4%
|
| 6 | 2 years | 96 |
2.5%
|
| 7 | 3 years or more | 111 |
2.8%
|
| Sysmiss | 11 |