| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 | 18 |
1%
|
| 2 | 2 | 1 |
0.1%
|
| 3 | 3 | 1 |
0.1%
|
| 4 | 4 | 1741 |
98%
|
| Missing value | 16 |
0.9%
|