| Value | Category | Cases | |
|---|---|---|---|
| 1 | I never smoked cigarettes. | 4597 |
73.1%
|
| 2 | I don't smoke now. | 704 |
11.2%
|
| 3 | Very difficult. | 257 |
4.1%
|
| 4 | Fairly difficult. | 233 |
3.7%
|
| 5 | Fairly easy. | 226 |
3.6%
|
| 6 | Very easy | 272 |
4.3%
|
| Sysmiss | 89 |