| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 8537 |
85.8%
|
| 2 | I have not stopped smoking | 446 |
4.5%
|
| 3 | 1-3 months | 314 |
3.2%
|
| 4 | 4-11 months | 124 |
1.2%
|
| 5 | One year | 197 |
2%
|
| 6 | 2 years | 101 |
1%
|
| 7 | 3 years or longer | 226 |
2.3%
|
| Sysmiss | 45 |