| Value | Category | Cases | |
|---|---|---|---|
| 0 | 7 |
22.6%
|
|
| 1 | 2 |
6.5%
|
|
| 2 | 3 |
9.7%
|
|
| 3 | 1 |
3.2%
|
|
| 4 | 2 |
6.5%
|
|
| Missing value | 16 |
51.6%
|