| Value | Category | Cases | |
|---|---|---|---|
| 1 | No difficulty | 54402 |
76.5%
|
| 2 | Some difficulty | 2988 |
4.2%
|
| 3 | A lot of difficulty | 2198 |
3.1%
|
| 4 | Unable to do | 3714 |
5.2%
|
| 5 | Do not know | 69 |
0.1%
|
| 8 | Not applicable | 6723 |
9.5%
|
| 9 | Unspecified | 1043 |
1.5%
|