| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1290 |
84.3%
|
| 2 | I have not stopped smoking cigarettes | 69 |
4.5%
|
| 3 | 1-3 months | 55 |
3.6%
|
| 4 | 4-11 months | 49 |
3.2%
|
| 5 | 1 year | 29 |
1.9%
|
| 6 | 2 years | 9 |
0.6%
|
| 7 | 3 years or more | 30 |
2%
|
| Sysmiss | 8 |