| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO, No Difficulty | 2994 |
98.5%
|
| 2 | YES, Some Difficulty | 33 |
1.1%
|
| 3 | YES, Alot of difficulty | 9 |
0.3%
|
| 4 | Cannot do at all | 4 |
0.1%
|
| Sysmiss | 1504 |