| Value | Category | Cases | |
|---|---|---|---|
| 1 | No difficulty | 900 |
90%
|
| 2 | Some difficulty | 20 |
2%
|
| 3 | A lot of difficulty | 7 |
0.7%
|
| 4 | Cannot do at all/unable to do | 1 |
0.1%
|
| 5 | DO NOT KNOW | 0 |
0%
|
| 8 | Not applicable | 72 |
7.2%
|