| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 691 |
50.1%
|
| 2 | SOME DIFFICULTY | 162 |
11.8%
|
| 3 | A LOT OF DIFFICULTY | 7 |
0.5%
|
| 9 | NO RESPONSE | 1 |
0.1%
|
| Sysmiss | 517 |
37.5%
|