| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1587 |
78.2%
|
| 2 | I have not stopped smoking | 165 |
8.1%
|
| 3 | 1-3 months | 118 |
5.8%
|
| 4 | 4-11 months | 39 |
1.9%
|
| 5 | One year | 37 |
1.8%
|
| 6 | 2 years | 25 |
1.2%
|
| 7 | 3 years or longer | 58 |
2.9%
|
| Sysmiss | 18 |