| Value | Category | Cases | |
|---|---|---|---|
| 0 | 20 |
64.5%
|
|
| 2 | 8 |
25.8%
|
|
| 3 | 1 |
3.2%
|
|
| 7 | 2 |
6.5%
|
|
| Sysmiss | 1920 |