| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2377 |
85.5%
|
| 2 | I have not stopped smoking | 117 |
4.2%
|
| 3 | It was very difficult | 78 |
2.8%
|
| 4 | It was rather difficult | 20 |
0.7%
|
| 5 | It was rather easy | 39 |
1.4%
|
| 6 | It was very easy | 150 |
5.4%
|
| Sysmiss | 29 |