| Value | Category | Cases | |
|---|---|---|---|
| 0 | 17 |
31.5%
|
|
| 1 | 26 |
48.1%
|
|
| 2 | 8 |
14.8%
|
|
| 3 | 1 |
1.9%
|
|
| 4 | 1 |
1.9%
|
|
| 15 | 1 |
1.9%
|
|
| Sysmiss | 507 |