| Value | Category | Cases | |
|---|---|---|---|
| 1 | No Difficulty | 72818 |
98%
|
| 2 | Some Difficulty | 1007 |
1.4%
|
| 3 | A lot of Difficulty | 264 |
0.4%
|
| 4 | Cannot do at all / Unable to do | 195 |
0.3%
|
| Sysmiss | 1 |