| Value | Category | Cases | |
|---|---|---|---|
| 1 | I never smoked cigarettes. | 2019 |
38.8%
|
| 2 | I don't smoke now. | 1459 |
28.1%
|
| 3 | Very difficult. | 296 |
5.7%
|
| 4 | Fairly difficult. | 386 |
7.4%
|
| 5 | Fairly easy. | 440 |
8.5%
|
| 6 | Very easy. | 598 |
11.5%
|
| Sysmiss | 146 |