| Value | Category | Cases | |
|---|---|---|---|
| 1 | 5 |
2.5%
|
|
| 2 | 5 |
2.5%
|
|
| 3 | 1 |
0.5%
|
|
| 4 | 2 |
1%
|
|
| 8 | 1 |
0.5%
|
|
| 9 | 1 |
0.5%
|
|
| Missing value | 184 |
92.5%
|