| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 4337 |
88.6%
|
| 2 | I have not stopped smoking | 142 |
2.9%
|
| 3 | 1-3 months | 112 |
2.3%
|
| 4 | 4-11 months | 38 |
0.8%
|
| 5 | One year | 85 |
1.7%
|
| 6 | 2 years | 56 |
1.1%
|
| 7 | 3 years or longer | 123 |
2.5%
|
| Sysmiss | 73 |