| Value | Category | Cases | |
|---|---|---|---|
| 4 | 76 |
2.1%
|
|
| 6 | 25 |
0.7%
|
|
| 7 | 230 |
6.5%
|
|
| 8 | 3208 |
90.6%
|
|
| Sysmiss | 999 |