| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 2114 |
93%
|
| 2 | SOME DIFFICULTY | 133 |
5.9%
|
| 3 | A LOT OF DIFFICULTY | 10 |
0.4%
|
| 4 | CANNOT CANNOT BE UNDERSTOOD AT ALL | 4 |
0.2%
|
| Sysmiss | 11 |
0.5%
|