| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. No difficulty | 18372 |
89.8%
|
| 2 | 2. Some difficulty | 1358 |
6.6%
|
| 3 | 3. A lot of difficulty | 623 |
3%
|
| 4 | 4. Cannot do at all | 96 |
0.5%
|
| 5 | 5. Refused | 1 |
0%
|
| 6 | 6. Don't know | 9 |
0%
|
| Missing value | 4502 |