| Value | Category | Cases | |
|---|---|---|---|
| 0 | 19 |
41.3%
|
|
| 1 | 21 |
45.7%
|
|
| 2 | 5 |
10.9%
|
|
| 3 | 1 |
2.2%
|
|
| Sysmiss | 435 |