| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2 |
0.2%
|
|
| 2 | 4 |
0.4%
|
|
| 4 | 15 |
1.6%
|
|
| 5 | 38 |
4.1%
|
|
| 6 | 102 |
11.1%
|
|
| 7 | 236 |
25.7%
|
|
| 8 | 425 |
46.3%
|
|
| 9 | 96 |
10.5%
|
|
| Sysmiss | 81 |