| Value | Category | Cases | |
|---|---|---|---|
| 1 | No difficulty | 1942 |
76.5%
|
| 2 | Some difficulty | 372 |
14.6%
|
| 3 | A lot of difficulty | 210 |
8.3%
|
| 4 | Cannot do at all | 15 |
0.6%
|
| 97 | Don't know | 1 |
0%
|
| 99 | Refuse to answer | 0 |
0%
|