Value | Category | Cases | |
---|---|---|---|
1 | No difficulty | 4825 |
58.5%
|
2 | Minor difficult | 723 |
8.8%
|
3 | Big difficulty | 1655 |
20.1%
|
8 | NA | 1013 | |
9 | I don’t know | 11 | |
Sysmiss | 17 |