| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3 |
1.2%
|
|
| 5 | 1 |
0.4%
|
|
| 6 | 31 |
12.7%
|
|
| 7 | 128 |
52.5%
|
|
| 8 | 57 |
23.4%
|
|
| 9 | 21 |
8.6%
|
|
| 10 | 2 |
0.8%
|
|
| 20 | 1 |
0.4%
|
|
| Sysmiss | 1707 |