| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 4778 |
63.1%
|
| 2 | I have not stopped smoking | 859 |
11.3%
|
| 3 | 1-3 months | 536 |
7.1%
|
| 4 | 4-11 months | 346 |
4.6%
|
| 5 | One year | 208 |
2.7%
|
| 6 | 2 years | 256 |
3.4%
|
| 7 | 3 years or longer | 203 |
2.7%
|
| 8 | 392 |
5.2%
|
|
| Sysmiss | 149 |