| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2715 |
87.5%
|
| 2 | I have not stopped smoking | 145 |
4.7%
|
| 3 | Less than 4 months | 89 |
2.9%
|
| 4 | 4-11 months | 30 |
1%
|
| 5 | One year | 24 |
0.8%
|
| 6 | 2 years | 25 |
0.8%
|
| 7 | 3 years or longer | 76 |
2.4%
|
| Sysmiss | 9 |