| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes, verbal | 241 |
88%
|
| 2 | yes, written | 5 |
1.8%
|
| 3 | no | 17 |
6.2%
|
| 4 | difficult to answer | 11 |
4%
|
| Sysmiss | 4910 |