| Value | Category | Cases | |
|---|---|---|---|
| 0 | 417 |
89.3%
|
|
| 1 | 2 |
0.4%
|
|
| 2 | 2 |
0.4%
|
|
| 3 | 33 |
7.1%
|
|
| 4 | 9 |
1.9%
|
|
| Missing value | 4 |
0.9%
|