| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2618 |
90.3%
|
| 2 | I have not stopped smoking | 90 |
3.1%
|
| 3 | Less than 4 months | 75 |
2.6%
|
| 4 | 4-11 months | 36 |
1.2%
|
| 5 | One year | 20 |
0.7%
|
| 6 | 2 years | 17 |
0.6%
|
| 7 | 3 years or longer | 42 |
1.4%
|
| Sysmiss | 15 |