| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2 |
0.5%
|
|
| 1 | 3 |
0.7%
|
|
| 2 | 5 |
1.2%
|
|
| 3 | 2 |
0.5%
|
|
| 4 | 2 |
0.5%
|
|
| Missing value | 408 |
96.7%
|