| Value | Category | Cases | |
|---|---|---|---|
| 1 | 27 |
6.4%
|
|
| 2 | 14 |
3.3%
|
|
| 3 | 6 |
1.4%
|
|
| 4 | 1 |
0.2%
|
|
| Missing value | 377 |
88.7%
|