| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 |
0.1%
|
|
| 2 | 1 |
0.1%
|
|
| 3 | 51 |
6.4%
|
|
| 4 | 16 |
2%
|
|
| Missing value | 728 |
91.3%
|