| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3719 |
81.2%
|
| 2 | I have not quit smoking | 290 |
6.3%
|
| 3 | Less than a month | 123 |
2.7%
|
| 4 | 1-3 months | 128 |
2.8%
|
| 5 | 4-11 months | 94 |
2.1%
|
| 6 | One year | 100 |
2.2%
|
| 7 | 2 years | 57 |
1.2%
|
| 8 | 3 years or more | 67 |
1.5%
|
| Sysmiss | 40 |