| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2632 |
92.1%
|
| 2 | I have not stopped smoking | 32 |
1.1%
|
| 3 | 1-3 months | 52 |
1.8%
|
| 4 | 4-11 months | 30 |
1%
|
| 5 | One year | 42 |
1.5%
|
| 6 | 2 years | 17 |
0.6%
|
| 7 | 3 years or longer | 54 |
1.9%
|
| Sysmiss | 4 |