| Value | Category | Cases | |
|---|---|---|---|
| 0 | 8 |
25.8%
|
|
| 3 | 2 |
6.5%
|
|
| 5 | 10 |
32.3%
|
|
| 10 | 5 |
16.1%
|
|
| 12 | 1 |
3.2%
|
|
| 15 | 4 |
12.9%
|
|
| 18 | 1 |
3.2%
|
|
| Sysmiss | 2240 |