| Value | Category | Cases | |
|---|---|---|---|
| 1 | REALLY EASY | 1231 |
82.6%
|
| 2 | PRETTY EASY | 193 |
13%
|
| 3 | NEUTRAL | 30 |
2%
|
| 4 | PRETTY HARD | 31 |
2.1%
|
| 5 | REALLY HARD | 5 |
0.3%
|
| Sysmiss | 3409 |