| Value | Category | Cases | |
|---|---|---|---|
| 1 | No ,no difficult | 41174 |
98.5%
|
| 2 | yes some difficult | 495 |
1.2%
|
| 3 | Yes alot of difficult | 95 |
0.2%
|
| 4 | Cannot do it at all | 18 |
0%
|
| Sysmiss | 7025 |