| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 257 |
43.5%
|
| 2 | SOME DIFFICULTY | 11 |
1.9%
|
| 3 | A LOT OF DIFFICULTY | 2 |
0.3%
|
| Sysmiss | 321 |
54.3%
|