| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 347 |
47.1%
|
| 2 | SOME DIFFICULTY | 9 |
1.2%
|
| 3 | A LOT OF DIFFICULTY | 2 |
0.3%
|
| 9 | NO RESPONSE | 1 |
0.1%
|
| Sysmiss | 377 |
51.2%
|