| Value | Category | Cases | |
|---|---|---|---|
| 0 | 5 |
2.7%
|
|
| 1 | 1 |
0.5%
|
|
| 2 | 2 |
1.1%
|
|
| 3 | 2 |
1.1%
|
|
| 4 | 1 |
0.5%
|
|
| Missing value | 173 |
94%
|