| Value | Category | Cases | |
|---|---|---|---|
| 0 | 18 |
27.7%
|
|
| 1 | 44 |
67.7%
|
|
| 2 | 2 |
3.1%
|
|
| 4 | 1 |
1.5%
|
|
| Sysmiss | 6892 |