| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 | 6 |
1.8%
|
| 2 | 12 | 4 |
1.2%
|
| 3 | 2 | 2 |
0.6%
|
| 4 | 3 | 4 |
1.2%
|
| 5 | 4 | 2 |
0.6%
|
| 6 | 7 | 4 |
1.2%
|
| 7 | 8 | 2 |
0.6%
|
| Missing value | 302 |
92.6%
|