| Value | Category | Cases | |
|---|---|---|---|
| 1 | no, can't do it | 19 |
0.3%
|
| 2 | yes, can do with a lot of difficulty | 65 |
1.1%
|
| 3 | yes, can do with some difficulty | 144 |
2.5%
|
| 4 | yes, can do with no difficulty | 5481 |
95.7%
|
| 8 | don't know | 18 |
0.3%
|
| Sysmiss | 38887 |