| Value | Category | Cases | |
|---|---|---|---|
| 0 | 30 |
15.3%
|
|
| 1 | 19 |
9.7%
|
|
| 2 | 13 |
6.6%
|
|
| 3 | 8 |
4.1%
|
|
| Missing value | 126 |
64.3%
|