| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 5278 |
79.5%
|
| 2 | I have not stopped smoking | 322 |
4.9%
|
| 3 | 1-3 months | 285 |
4.3%
|
| 4 | 4-11 months | 192 |
2.9%
|
| 5 | One year | 114 |
1.7%
|
| 6 | 2 years | 126 |
1.9%
|
| 7 | 3 years or longer | 93 |
1.4%
|
| 8 | 228 |
3.4%
|
|
| Sysmiss | 110 |