| Value | Category | Cases | |
|---|---|---|---|
| 0 | 18 |
60%
|
|
| 1 | 2 |
6.7%
|
|
| 2 | 2 |
6.7%
|
|
| 3 | 1 |
3.3%
|
|
| 4 | 1 |
3.3%
|
|
| 5 | 1 |
3.3%
|
|
| 8 | 1 |
3.3%
|
|
| 10 | 1 |
3.3%
|
|
| 11 | 1 |
3.3%
|
|
| 15 | 1 |
3.3%
|
|
| 16 | 1 |
3.3%
|
|
| Sysmiss | 1 |