| Value | Category | Cases | |
|---|---|---|---|
| 0 | 7 |
0.1%
|
|
| 1 | 405 |
7.8%
|
|
| 2 | 50 |
1%
|
|
| 3 | 14 |
0.3%
|
|
| 4 | 4 |
0.1%
|
|
| Missing value | 4743 |
90.8%
|