| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
2.5%
|
|
| 2 | 4 |
10%
|
|
| 3 | 5 |
12.5%
|
|
| 4 | 8 |
20%
|
|
| 5 | 5 |
12.5%
|
|
| 6 | 17 |
42.5%
|
|
| Sysmiss | 959 |