| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 6763 |
94.5%
|
| 2 | SOME DIFFICULTY | 238 |
3.3%
|
| 3 | A LOT OF DIFFICULTY | 19 |
0.3%
|
| 4 | CANNOT CANNOT BE UNDERSTOOD AT ALL | 12 |
0.2%
|
| 9 | NO RESPONSE | 2 |
0%
|
| Sysmiss | 121 |
1.7%
|