| Value | Category | Cases | |
|---|---|---|---|
| 1 | no, no difficulty | 26480 |
98%
|
| 2 | yes, some | 263 |
1%
|
| 3 | yes, a lot | 40 |
0.1%
|
| 4 | cannot do | 240 |
0.9%
|
| Sysmiss | 550 |