| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1639 |
94%
|
| 2 | I have not stopped smoking | 37 |
2.1%
|
| 3 | 1-3 months | 22 |
1.3%
|
| 4 | 4-11 months | 8 |
0.5%
|
| 5 | One year | 11 |
0.6%
|
| 6 | 2 years | 7 |
0.4%
|
| 7 | 3 years or longer | 20 |
1.1%
|
| Sysmiss | 3 |