| Value | Category | Cases | |
|---|---|---|---|
| 0 | 6 |
20%
|
|
| 1 | 16 |
53.3%
|
|
| 2 | 4 |
13.3%
|
|
| 3 | 2 |
6.7%
|
|
| 4 | 1 |
3.3%
|
|
| 6 | 1 |
3.3%
|
|
| Sysmiss | 628 |