| Value | Category | Cases | |
|---|---|---|---|
| 0 | 88 |
1.9%
|
|
| 5 | 406 |
8.6%
|
|
| 10 | 506 |
10.7%
|
|
| 15 | 1363 |
28.9%
|
|
| 20 | 1433 |
30.3%
|
|
| 25 | 926 |
19.6%
|
|
| Sysmiss | 9565 |