| Value | Category | Cases | |
|---|---|---|---|
| 1 | 10 |
2.5%
|
|
| 2 | 25 |
6.1%
|
|
| 3 | 12 |
2.9%
|
|
| 4 | 29 |
7.1%
|
|
| Missing value | 332 |
81.4%
|