| Value | Category | Cases | |
|---|---|---|---|
| 0 | 18187 |
19.3%
|
|
| 9 | 26453 |
28%
|
|
| 13 | 13493 |
14.3%
|
|
| 16 | 14173 |
15%
|
|
| 21 | 11494 |
12.2%
|
|
| 28 | 10531 |
11.2%
|
|
| Sysmiss | 7 |