| Value | Category | Cases | |
|---|---|---|---|
| 1 | a.No difficulty | 18996 |
79.3%
|
| 2 | b.Some difficulty | 597 |
2.5%
|
| 3 | c.A lot of difficulty | 165 |
0.7%
|
| 4 | d.Cannot do at all | 52 |
0.2%
|
| 5 | e.Refused | 3 |
0%
|
| 6 | f.Don't know | 4 |
0%
|
| Missing value | 4137 |
17.3%
|