| Value | Category | Cases | |
|---|---|---|---|
| 1 | I never smoked cigarettes. | 4473 |
71.5%
|
| 2 | I don't smoke now. | 599 |
9.6%
|
| 3 | Very difficult. | 403 |
6.4%
|
| 4 | Fairly difficult. | 322 |
5.1%
|
| 5 | Fairly easy. | 223 |
3.6%
|
| 6 | Very easy | 238 |
3.8%
|
| Sysmiss | 120 |