| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0 | 10874 |
54.8%
|
| 15 | 15 | 2798 |
14.1%
|
| 30 | 30 | 5392 |
27.2%
|
| 45 | 45 | 794 |
4%
|
| Sysmiss | 22154 |