| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2352 |
73.3%
|
| 2 | I have not stopped smoking | 179 |
5.6%
|
| 3 | 1-3 months | 219 |
6.8%
|
| 4 | 4-11 months | 102 |
3.2%
|
| 5 | One year | 122 |
3.8%
|
| 6 | 2 years | 93 |
2.9%
|
| 7 | 3 years or longer | 141 |
4.4%
|
| Sysmiss | 7 |