| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 |
2.3%
|
|
| 3 | 1 |
2.3%
|
|
| 6 | 1 |
2.3%
|
|
| 7 | 13 |
30.2%
|
|
| 8 | 27 |
62.8%
|
|
| Sysmiss | 243 |