| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 3710 |
76.3%
|
| 2 | I have never stopped smoking | 290 |
6%
|
| 3 | Less than 1 month | 169 |
3.5%
|
| 4 | 1-3 months ago | 114 |
2.3%
|
| 5 | 4-11 months ago | 125 |
2.6%
|
| 6 | One year ago | 108 |
2.2%
|
| 7 | 2 years ago | 85 |
1.7%
|
| 8 | 3 years ago or longer | 264 |
5.4%
|
| Sysmiss | 165 |