| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 585 |
55.8%
|
| 2 | SOME DIFFICULTY | 54 |
5.2%
|
| 3 | A LOT OF DIFFICULTY | 6 |
0.6%
|
| 9 | NO RESPONSE | 1 |
0.1%
|
| Sysmiss | 402 |
38.4%
|