| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 | 1 |
0.5%
|
| 2 | 2 | 1 |
0.5%
|
| 3 | 9 | 1 |
0.5%
|
| 4 | 10 | 13 |
5.9%
|
| 5 | 11 | 1 |
0.5%
|
| 6 | 12 | 2 |
0.9%
|
| Missing value | 203 |
91.4%
|