| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
0.4%
|
|
| 1 | 15 |
5.7%
|
|
| 2 | 3 |
1.1%
|
|
| 3 | 6 |
2.3%
|
|
| Missing value | 238 |
90.5%
|