| Value | Category | Cases | |
|---|---|---|---|
| 1 | 53 |
6.1%
|
|
| 2 | 68 |
7.9%
|
|
| 3 | 81 |
9.4%
|
|
| 4 | 37 |
4.3%
|
|
| 6 | 13 |
1.5%
|
|
| Missing value | 613 |
70.9%
|