| Value | Category | Cases | |
|---|---|---|---|
| 1 | No ,no difficult | 39440 |
98.7%
|
| 2 | yes some difficult | 400 |
1%
|
| 3 | Yes alot of difficult | 95 |
0.2%
|
| 4 | Cannot do it at all | 15 |
0%
|
| Sysmiss | 7119 |