| Value | Category | Cases | |
|---|---|---|---|
| 0 | 18 |
7.4%
|
|
| 1 | 176 |
72.7%
|
|
| 2 | 46 |
19%
|
|
| 3 | 1 |
0.4%
|
|
| 4 | 1 |
0.4%
|
|
| Missing value | 976 |