| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 12838 |
82.3%
|
| 2 | I have not stopped smoking | 731 |
4.7%
|
| 3 | 1-3 months | 497 |
3.2%
|
| 4 | 4-11 months | 347 |
2.2%
|
| 5 | One year | 208 |
1.3%
|
| 6 | 2 years | 255 |
1.6%
|
| 7 | 3 years or longer | 192 |
1.2%
|
| 8 | 532 |
3.4%
|
|
| Sysmiss | 357 |