| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2567 |
81.7%
|
| 2 | I have not stopped smoking | 117 |
3.7%
|
| 3 | 1-3 months | 147 |
4.7%
|
| 4 | 4-11 months | 69 |
2.2%
|
| 5 | One year | 82 |
2.6%
|
| 6 | 2 years | 59 |
1.9%
|
| 7 | 3 years or longer | 102 |
3.2%
|
| Sysmiss | 9 |