| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1933 |
91.2%
|
| 2 | I have not stopped smoking | 53 |
2.5%
|
| 3 | Less than 1 month | 21 |
1%
|
| 4 | 1-3 months | 32 |
1.5%
|
| 5 | 4-11 months | 14 |
0.7%
|
| 6 | One year | 9 |
0.4%
|
| 7 | 2 years | 8 |
0.4%
|
| 8 | 3 years or longer | 50 |
2.4%
|
| Sysmiss | 13 |