| Value | Category | Cases | |
|---|---|---|---|
| 0 | 38 |
2.5%
|
|
| 1 | 17 |
1.1%
|
|
| 2 | 60 |
4%
|
|
| 3 | 129 |
8.6%
|
|
| 4 | 1253 |
83.4%
|
|
| 888 | 6 |
0.4%
|
|
| Sysmiss | 92 |