| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 4903 |
87.1%
|
| 2 | I have not stopped smoking | 134 |
2.4%
|
| 3 | It was very difficult | 58 |
1%
|
| 4 | It was rather difficult | 90 |
1.6%
|
| 5 | It was rather easy | 178 |
3.2%
|
| 6 | It was very easy | 269 |
4.8%
|
| Sysmiss | 66 |