| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 315 |
42.8%
|
| 2 | SOME DIFFICULTY | 33 |
4.5%
|
| 3 | A LOT OF DIFFICULTY | 1 |
0.1%
|
| 9 | NO RESPONSE | 10 |
1.4%
|
| Sysmiss | 377 |
51.2%
|