| Value | Category | Cases | |
|---|---|---|---|
| 1 | 6 |
24%
|
|
| 2 | 9 |
36%
|
|
| 3 | 5 |
20%
|
|
| 4 | 3 |
12%
|
|
| 5 | 2 |
8%
|
|
| Missing value | 21 |