| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 4634 |
87.8%
|
| 2 | I have not stopped smoking | 41 |
0.8%
|
| 3 | It was very difficult | 102 |
1.9%
|
| 4 | It was rather difficult | 31 |
0.6%
|
| 5 | It was rather easy | 87 |
1.6%
|
| 6 | It was very easy | 383 |
7.3%
|
| Sysmiss | 20 |