| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 | 717 |
75.5%
|
| 2 | 2 | 67 |
7.1%
|
| 3 | 3 | 20 |
2.1%
|
| 4 | 4 | 1 |
0.1%
|
| Missing value | 145 |
15.3%
|