| Value | Category | Cases | |
|---|---|---|---|
| 1 | I never smoked cigarettes. | 3280 |
77.2%
|
| 2 | I don't smoke now. | 564 |
13.3%
|
| 3 | Very difficult. | 70 |
1.6%
|
| 4 | Fairly difficult. | 79 |
1.9%
|
| 5 | Fairly easy. | 104 |
2.4%
|
| 6 | Very easy | 149 |
3.5%
|
| Sysmiss | 24 |