| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1943 |
90.9%
|
| 2 | I have not stopped smoking | 38 |
1.8%
|
| 3 | 1-3 months | 55 |
2.6%
|
| 4 | 4-11 months | 19 |
0.9%
|
| 5 | One year | 20 |
0.9%
|
| 6 | 2 years | 15 |
0.7%
|
| 7 | 3 years or longer | 47 |
2.2%
|
| Sysmiss | 22 |