| Value | Category | Cases | |
|---|---|---|---|
| 0 | 221 |
3.5%
|
|
| 1 | 1606 |
25.2%
|
|
| 2 | 56 |
0.9%
|
|
| 3 | 4 |
0.1%
|
|
| Missing value | 4494 |
70.4%
|