| Value | Category | Cases | |
|---|---|---|---|
| 1 | no, can't do it | 181 |
0.5%
|
| 2 | yes, can do with a lot of difficulty | 939 |
2.4%
|
| 3 | yes, can do with some difficulty | 2379 |
6.1%
|
| 4 | yes, can do with no difficulty | 35628 |
91%
|
| 8 | don't know | 11 |
0%
|
| Sysmiss | 5476 |