| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 7205 |
87.1%
|
| 2 | I have not stopped smoking | 352 |
4.3%
|
| 3 | 1-3 months | 241 |
2.9%
|
| 4 | 4-11 months | 98 |
1.2%
|
| 5 | One year | 125 |
1.5%
|
| 6 | 2 years | 68 |
0.8%
|
| 7 | 3 years or longer | 181 |
2.2%
|
| Sysmiss | 25 |