| Value | Category | Cases | |
|---|---|---|---|
| 1 | No ,no difficult | 41283 |
98.2%
|
| 2 | yes some difficult | 625 |
1.5%
|
| 3 | Yes alot of difficult | 93 |
0.2%
|
| 4 | Cannot Seeit at all | 32 |
0.1%
|
| Sysmiss | 6990 |