| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0 | 3223 |
44.7%
|
| 15 | 15 | 1370 |
19%
|
| 30 | 30 | 2283 |
31.6%
|
| 45 | 45 | 340 |
4.7%
|
| Sysmiss | 34796 |