| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0 | 15672 |
49.5%
|
| 15 | 15 | 6546 |
20.7%
|
| 30 | 30 | 8381 |
26.5%
|
| 45 | 45 | 1048 |
3.3%
|
| Sysmiss | 10365 |