| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 4694 |
88.8%
|
| 2 | I have not stopped smoking | 46 |
0.9%
|
| 3 | 1-3 months | 145 |
2.7%
|
| 4 | 4-11 months | 43 |
0.8%
|
| 5 | One year | 57 |
1.1%
|
| 6 | 2 years | 71 |
1.3%
|
| 7 | 3 years or longer | 231 |
4.4%
|
| Sysmiss | 11 |