| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1605 |
96.1%
|
| 2 | I have not stopped smoking | 27 |
1.6%
|
| 3 | Less than 4 months | 17 |
1%
|
| 4 | 4-11 months | 12 |
0.7%
|
| 5 | One year | 3 |
0.2%
|
| 6 | 2 years | 3 |
0.2%
|
| 7 | 3 years or longer | 3 |
0.2%
|
| Sysmiss | 9 |