| Value | Category | Cases | |
|---|---|---|---|
| 1 | 7 |
1.7%
|
|
| 2 | 11 |
2.6%
|
|
| 3 | 10 |
2.4%
|
|
| 4 | 5 |
1.2%
|
|
| 5 | 2 |
0.5%
|
|
| 6 | 3 |
0.7%
|
|
| 8 | 2 |
0.5%
|
|
| Missing value | 382 |
90.5%
|