| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 | 2 |
0.6%
|
| 2 | 2 | 3 |
0.9%
|
| 3 | 3 | 11 |
3.4%
|
| 4 | 4 | 11 |
3.4%
|
| Missing value | 298 |
91.7%
|