| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3799 |
89.2%
|
| 2 | I have not quit smoking | 97 |
2.3%
|
| 3 | Less than a month | 74 |
1.7%
|
| 4 | 1-3 months | 50 |
1.2%
|
| 5 | 4-11 months | 85 |
2%
|
| 6 | One year | 53 |
1.2%
|
| 7 | 2 years | 99 |
2.3%
|
| 8 | 3 years or more | 0 |
0%
|
| Sysmiss | 16 |