| Value | Category | Cases | |
|---|---|---|---|
| 0 | 19 |
22.9%
|
|
| 2 | 8 |
9.6%
|
|
| 3 | 43 |
51.8%
|
|
| 4 | 13 |
15.7%
|
|
| Sysmiss | 8492 |