| Value | Category | Cases | |
|---|---|---|---|
| 1 | 9 |
1.5%
|
|
| 2 | 26 |
4.5%
|
|
| 3 | 26 |
4.5%
|
|
| 4 | 5 |
0.9%
|
|
| 5 | 9 |
1.5%
|
|
| 6 | 2 |
0.3%
|
|
| 7 | 3 |
0.5%
|
|
| Missing value | 503 |
86.3%
|