| Value | Category | Cases | |
|---|---|---|---|
| 1 | EASY | 28 |
96.6%
|
| 2 | DIFFICULT | 1 |
3.4%
|
| 3 | NOT POSSIBLE | 0 |
0%
|
| 98 | DON'T KNOW | 0 |
0%
|
| Sysmiss | 172 |