| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3270 |
71.9%
|
| 2 | I have not stopped smoking | 268 |
5.9%
|
| 3 | It was very difficult | 160 |
3.5%
|
| 4 | It was rather difficult | 74 |
1.6%
|
| 5 | It was rather easy | 254 |
5.6%
|
| 6 | It was very easy | 521 |
11.5%
|
| Sysmiss | 57 |