| Value | Category | Cases | |
|---|---|---|---|
| 0 | 17 |
73.9%
|
|
| 1 | 1 |
4.3%
|
|
| 3 | 2 |
8.7%
|
|
| 4 | 1 |
4.3%
|
|
| 9 | 1 |
4.3%
|
|
| 19 | 1 |
4.3%
|
|
| Sysmiss | 1 |