| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 3477 |
92%
|
| 2 | 1-3 months | 53 |
1.4%
|
| 3 | 4-11 months | 62 |
1.6%
|
| 4 | One year | 46 |
1.2%
|
| 5 | 2 years | 27 |
0.7%
|
| 6 | 3 years or longer | 76 |
2%
|
| 7 | I have not stopped smoking | 37 |
1%
|
| Sysmiss | 16 |