| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1678 |
92.5%
|
| 2 | I have not stopped smoking | 37 |
2%
|
| 3 | 1-3 months | 33 |
1.8%
|
| 4 | 4-11 months | 21 |
1.2%
|
| 5 | One year | 9 |
0.5%
|
| 6 | 2 years | 16 |
0.9%
|
| 7 | 3 years or longer | 20 |
1.1%
|
| Sysmiss | 31 |