| Value | Category | Cases | |
|---|---|---|---|
| 0 | 9 |
8.8%
|
|
| 1 | 37 |
36.3%
|
|
| 2 | 43 |
42.2%
|
|
| 3 | 12 |
11.8%
|
|
| 4 | 1 |
1%
|
|
| Missing value | 6 |