| Value | Category | Cases | |
|---|---|---|---|
| 0 | 37 |
2.5%
|
|
| 1 | 9 |
0.6%
|
|
| 2 | 56 |
3.7%
|
|
| 3 | 98 |
6.5%
|
|
| 4 | 1297 |
86.3%
|
|
| 888 | 6 |
0.4%
|
|
| Sysmiss | 92 |