| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1503 |
78.1%
|
| 2 | I have not stopped smoking | 126 |
6.5%
|
| 3 | 1-3 months | 138 |
7.2%
|
| 4 | 4-11 months | 58 |
3%
|
| 5 | One year | 36 |
1.9%
|
| 6 | 2 years | 24 |
1.2%
|
| 7 | 3 years or longer | 39 |
2%
|
| Sysmiss | 58 |