| Value | Category | Cases | |
|---|---|---|---|
| 1 | No difficulty | 54564 |
76.7%
|
| 2 | Some difficulty | 2805 |
3.9%
|
| 3 | A lot of difficulty | 2265 |
3.2%
|
| 4 | Unable to do | 3754 |
5.3%
|
| 5 | Do not know | 57 |
0.1%
|
| 8 | Not applicable | 6723 |
9.5%
|
| 9 | Unspecified | 969 |
1.4%
|