| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1664 |
84.7%
|
| 2 | I have not stopped smoking | 131 |
6.7%
|
| 3 | 1-3 months | 79 |
4%
|
| 4 | 4-11 months | 21 |
1.1%
|
| 5 | One year | 20 |
1%
|
| 6 | 2 years | 18 |
0.9%
|
| 7 | 3 years or longer | 31 |
1.6%
|
| Sysmiss | 10 |