| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2 |
1.1%
|
|
| 6 | 1 |
0.6%
|
|
| 7 | 2 |
1.1%
|
|
| 9 | 2 |
1.1%
|
|
| 10 | 1 |
0.6%
|
|
| 12 | 2 |
1.1%
|
|
| Missing value | 168 |
94.4%
|