| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. No difficulty | 141730 |
90.1%
|
| 2 | 2. Some difficulty | 4012 |
2.6%
|
| 3 | 3. A lot of difficulty | 1634 |
1%
|
| 4 | 4. Unable to do | 932 |
0.6%
|
| 5 | 5. Do not know | 64 |
0%
|
| 6 | 6. Cannot yet be determined | 7330 |
4.7%
|
| 9 | 9. Unspecified | 1571 |
1%
|