| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. No difficulty | 21679 |
92.9%
|
| 2 | 2. Some difficulty | 1164 |
5%
|
| 3 | 3. A lot of difficulty | 446 |
1.9%
|
| 4 | 4. Cannot do at all | 26 |
0.1%
|
| 5 | 5. Refused | 1 |
0%
|
| 6 | 6. Don't know | 15 |
0.1%
|
| Missing value | 1630 |