| Value | Category | Cases | |
|---|---|---|---|
| 1 | No Difficulty | 71481 |
96.2%
|
| 2 | Some Difficulty | 2216 |
3%
|
| 3 | A lot of Difficulty | 420 |
0.6%
|
| 4 | Cannot do at all / Unable to do | 165 |
0.2%
|
| Sysmiss | 3 |