| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 3808 |
93.3%
|
| 2 | I have not stopped smoking | 82 |
2%
|
| 3 | Less than 4 months | 82 |
2%
|
| 4 | 4-11 months | 31 |
0.8%
|
| 5 | One year | 36 |
0.9%
|
| 6 | 2 years | 22 |
0.5%
|
| 7 | 3 years or longer | 21 |
0.5%
|
| Sysmiss | 28 |