| Value | Category | Cases | |
|---|---|---|---|
| 1 | No difficulty | 31037 |
90.2%
|
| 2 | Yes, some difficulty | 2266 |
6.6%
|
| 3 | Yes, a lot of difficulty | 983 |
2.9%
|
| 4 | Yes, Cannot do at all | 117 |
0.3%
|
| 99 | Refused | 1 |
0%
|