| Value | Category | Cases | |
|---|---|---|---|
| 3 | 1 |
0.1%
|
|
| 4 | 8 |
1.1%
|
|
| 6 | 306 |
43.2%
|
|
| 7 | 12 |
1.7%
|
|
| 8 | 186 |
26.3%
|
|
| Missing value | 195 |
27.5%
|