| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 3705 |
90.1%
|
| 2 | I have not stopped smoking | 76 |
1.8%
|
| 3 | It was very difficult | 86 |
2.1%
|
| 4 | It was rather difficult | 29 |
0.7%
|
| 5 | It was rather easy | 45 |
1.1%
|
| 6 | It was very easy | 169 |
4.1%
|
| Sysmiss | 210 |