| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
2.1%
|
|
| 1 | 22 |
46.8%
|
|
| 2 | 18 |
38.3%
|
|
| 3 | 5 |
10.6%
|
|
| 4 | 1 |
2.1%
|
|
| Sysmiss | 658 |