| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 3451 |
81.2%
|
| 2 | I have not stopped smoking | 236 |
5.6%
|
| 3 | 1-3 months | 227 |
5.3%
|
| 4 | 4-11 months | 61 |
1.4%
|
| 5 | One year | 102 |
2.4%
|
| 6 | 2 years | 43 |
1%
|
| 7 | 3 years or longer | 131 |
3.1%
|
| Sysmiss | 31 |