| Value | Category | Cases | |
|---|---|---|---|
| 1 | No difficulty | 52865 |
98.4%
|
| 2 | Yes, some difficulty | 556 |
1%
|
| 3 | Yes, a lot of difficulty | 257 |
0.5%
|
| 4 | Yes, Cannot do at all | 52 |
0.1%
|
| 97 | Don't know | 3 |
0%
|
| 98 | Refused | 1 |
0%
|
| Sysmiss | 8751 |