| Value | Category | Cases | |
|---|---|---|---|
| 9 | 41 |
14.2%
|
|
| 10 | 222 |
76.8%
|
|
| 11 | 7 |
2.4%
|
|
| 12 | 3 |
1%
|
|
| 15 | 4 |
1.4%
|
|
| 16 | 4 |
1.4%
|
|
| 17 | 5 |
1.7%
|
|
| 18 | 2 |
0.7%
|
|
| 20 | 1 |
0.3%
|
|
| Sysmiss | 21 |