| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0 | 5253 |
48.8%
|
| 15 | 15 | 1726 |
16%
|
| 30 | 30 | 3280 |
30.5%
|
| 45 | 45 | 509 |
4.7%
|
| Sysmiss | 31244 |