| Value | Category | Cases | |
|---|---|---|---|
| 1 | No difficulty | 33436 |
97.2%
|
| 2 | Yes, some difficulty | 661 |
1.9%
|
| 3 | Yes, a lot of difficulty | 253 |
0.7%
|
| 4 | Yes, Cannot do at all | 53 |
0.2%
|
| 99 | Refused | 1 |
0%
|