| Value | Category | Cases | |
|---|---|---|---|
| 0 | 17 |
68%
|
|
| 1 | 1 |
4%
|
|
| 2 | 3 |
12%
|
|
| 3 | 1 |
4%
|
|
| 4 | 2 |
8%
|
|
| 6 | 1 |
4%
|
|
| Sysmiss | 6 |