| Value | Category | Cases | |
|---|---|---|---|
| 1 | No difficulty | 53153 |
98.9%
|
| 2 | Yes, some difficulty | 329 |
0.6%
|
| 3 | Yes, a lot of difficulty | 180 |
0.3%
|
| 4 | Yes, Cannot do at all | 70 |
0.1%
|
| 97 | Don't know | 2 |
0%
|
| 98 | Refused | 0 |
0%
|
| Sysmiss | 8751 |