| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 3877 |
71.3%
|
| 2 | I have not stopped smoking | 423 |
7.8%
|
| 3 | 1-3 months | 413 |
7.6%
|
| 4 | 4-11 months | 189 |
3.5%
|
| 5 | One year | 164 |
3%
|
| 6 | 2 years | 125 |
2.3%
|
| 7 | 3 years or longer | 250 |
4.6%
|
| Sysmiss | 124 |