| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 4838 |
80.2%
|
| 2 | I have not stopped smoking | 362 |
6%
|
| 3 | 1-3 months | 308 |
5.1%
|
| 4 | 4-11 months | 163 |
2.7%
|
| 5 | One year | 167 |
2.8%
|
| 6 | 2 years | 75 |
1.2%
|
| 7 | 3 years or longer | 118 |
2%
|
| Sysmiss | 15 |