| Value | Category | Cases | |
|---|---|---|---|
| 1 | I never smoked cigarettes. | 9313 |
78.6%
|
| 2 | I don't smoke now. | 1463 |
12.4%
|
| 3 | Very difficult. | 258 |
2.2%
|
| 4 | Fairly difficult. | 209 |
1.8%
|
| 5 | Fairly easy. | 252 |
2.1%
|
| 6 | Very easy | 349 |
2.9%
|
| Sysmiss | 102 |