| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 1922 |
54.2%
|
| 2 | SOME DIFFICULTY | 334 |
9.4%
|
| 3 | A LOT OF DIFFICULTY | 14 |
0.4%
|
| 4 | CANNOT BE UNDERSTOOD AT ALL | 4 |
0.1%
|
| Sysmiss | 1270 |
35.8%
|