| Value | Category | Cases | |
|---|---|---|---|
| 1 | a.No difficulty | 19436 |
79.7%
|
| 2 | b.Some difficulty | 377 |
1.5%
|
| 3 | c.A lot of difficulty | 203 |
0.8%
|
| 4 | d.Cannot do at all | 57 |
0.2%
|
| 5 | e.Refused | 2 |
0%
|
| 6 | f.Don't know | 2 |
0%
|
| Missing value | 4295 |
17.6%
|