| Value | Category | Cases | |
|---|---|---|---|
| 1 | No | 313 |
14.3%
|
| 2 | Yes, and more harmful than cigarettes | 1342 |
61.1%
|
| 3 | Yes, and less harmful than cigarettes | 223 |
10.2%
|
| 4 | Yes, and the same as cigarettes | 318 |
14.5%
|
| Sysmiss | 54 |