| Value | Category | Cases | |
|---|---|---|---|
| 1 | 21 |
2.6%
|
|
| 2 | 50 |
6.3%
|
|
| 3 | 121 |
15.2%
|
|
| 4 | 13 |
1.6%
|
|
| Missing value | 592 |
74.3%
|