| Value | Category | Cases | |
|---|---|---|---|
| 0 | 8 |
0.6%
|
|
| 1 | 16 |
1.1%
|
|
| 2 | 5 |
0.4%
|
|
| 3 | 103 |
7.3%
|
|
| 4 | 2 |
0.1%
|
|
| Missing value | 1286 |
90.6%
|