| Value | Category | Cases | |
|---|---|---|---|
| 1 | 5 |
2.6%
|
|
| 2 | 12 |
6.3%
|
|
| 3 | 22 |
11.6%
|
|
| 4 | 26 |
13.7%
|
|
| 5 | 18 |
9.5%
|
|
| 6 | 33 |
17.4%
|
|
| 7 | 23 |
12.1%
|
|
| 8 | 35 |
18.4%
|
|
| 9 | 16 |
8.4%
|
|
| Missing value | 640 |