| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 6090 |
96%
|
| 2 | I have not stopped smoking | 115 |
1.8%
|
| 3 | 1-3 months | 60 |
0.9%
|
| 4 | 4-11 months | 30 |
0.5%
|
| 5 | One year | 14 |
0.2%
|
| 6 | 2 years | 22 |
0.3%
|
| 7 | 3 years or longer | 6 |
0.1%
|
| 8 | 9 |
0.1%
|
|
| Sysmiss | 60 |