| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes, verbal | 650 |
81.5%
|
| 2 | yes, written | 19 |
2.4%
|
| 3 | no | 87 |
10.9%
|
| 4 | difficult to answer | 42 |
5.3%
|
| Sysmiss | 6018 |