| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 10886 |
88.5%
|
| 2 | I have not stopped smoking | 461 |
3.7%
|
| 3 | 1-3 months | 411 |
3.3%
|
| 4 | 4-11 months | 116 |
0.9%
|
| 5 | One year | 101 |
0.8%
|
| 6 | 2 years | 80 |
0.7%
|
| 7 | 3 years or longer | 241 |
2%
|
| Sysmiss | 362 |