| Value | Category | Cases | |
|---|---|---|---|
| 0 | 19 |
63.3%
|
|
| 1 | 4 |
13.3%
|
|
| 2 | 1 |
3.3%
|
|
| 3 | 2 |
6.7%
|
|
| 5 | 2 |
6.7%
|
|
| 17 | 1 |
3.3%
|
|
| 18 | 1 |
3.3%
|
|
| Sysmiss | 1 |