| Value | Category | Cases | |
|---|---|---|---|
| 0 | 520 |
66.5%
|
|
| 2 | 192 |
24.6%
|
|
| 10 | 48 |
6.1%
|
|
| 20 | 22 |
2.8%
|
|
| Sysmiss | 83 |