| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 | 9 |
1.4%
|
| 2 | 2 | 47 |
7.3%
|
| 3 | 3 | 21 |
3.3%
|
| 4 | 99 | 25 |
3.9%
|
| Missing value | 538 |
84.1%
|