| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2271 |
59.4%
|
| 2 | I have not stopped smoking | 428 |
11.2%
|
| 3 | 1-3 months | 469 |
12.3%
|
| 4 | 4-11 months | 201 |
5.3%
|
| 5 | One year | 191 |
5%
|
| 6 | 2 years | 87 |
2.3%
|
| 7 | 3 years or longer | 177 |
4.6%
|
| Sysmiss | 87 |