| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO, No Difficulty | 1610 |
98.5%
|
| 2 | YES, Some Difficulty | 15 |
0.9%
|
| 3 | YES, Alot of difficulty | 6 |
0.4%
|
| 4 | Cannot do at all | 4 |
0.2%
|
| Sysmiss | 2909 |