| Value | Category | Cases | |
|---|---|---|---|
| 0 | 21 |
2.6%
|
|
| 1 | 14 |
1.7%
|
|
| 2 | 21 |
2.6%
|
|
| 3 | 216 |
26.8%
|
|
| 4 | 534 |
66.3%
|
|
| Sysmiss | 889 |