| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 | 3 |
0.7%
|
| 2 | 3 | 2 |
0.4%
|
| 3 | 4 | 12 |
2.6%
|
| 4 | 5 | 21 |
4.6%
|
| Missing value | 420 |
91.7%
|