| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 919 |
58.8%
|
| 2 | SOME DIFFICULTY | 13 |
0.8%
|
| 3 | A LOT OF DIFFICULTY | 5 |
0.3%
|
| Sysmiss | 627 |
40.1%
|