| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 263 |
44.5%
|
| 2 | SOME DIFFICULTY | 4 |
0.7%
|
| 3 | A LOT OF DIFFICULTY | 3 |
0.5%
|
| Sysmiss | 321 |
54.3%
|