| Value | Category | Cases | |
|---|---|---|---|
| 3 | 17 |
6.3%
|
|
| 4 | 5 |
1.9%
|
|
| 5 | 1 |
0.4%
|
|
| 6 | 1 |
0.4%
|
|
| 8 | 1 |
0.4%
|
|
| 11 | 1 |
0.4%
|
|
| 12 | 26 |
9.7%
|
|
| Missing value | 217 |
80.7%
|