| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3332 |
81.5%
|
| 2 | I have not stopped smoking | 134 |
3.3%
|
| 3 | It was very difficult | 44 |
1.1%
|
| 4 | It was rather difficult | 39 |
1%
|
| 5 | It was rather easy | 149 |
3.6%
|
| 6 | It was very easy | 391 |
9.6%
|
| Sysmiss | 39 |