| Value | Category | Cases | |
|---|---|---|---|
| 12 | 11 |
12.8%
|
|
| 13 | 10 |
11.6%
|
|
| 14 | 28 |
32.6%
|
|
| 15 | 2 |
2.3%
|
|
| 16 | 7 |
8.1%
|
|
| 17 | 11 |
12.8%
|
|
| 18 | 8 |
9.3%
|
|
| 19 | 1 |
1.2%
|
|
| 20 | 5 |
5.8%
|
|
| 21 | 3 |
3.5%
|
|
| Sysmiss | 9471 |