| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2447 |
89.8%
|
| 2 | I have not stopped smoking | 93 |
3.4%
|
| 3 | 1-3 months | 68 |
2.5%
|
| 4 | 4-11 months | 21 |
0.8%
|
| 5 | One year | 18 |
0.7%
|
| 6 | 2 years | 22 |
0.8%
|
| 7 | 3 years or longer | 56 |
2.1%
|
| Sysmiss | 2 |