| Value | Category | Cases | |
|---|---|---|---|
| . | 2626 |
67.5%
|
|
| 0 | 872 |
22.4%
|
|
| 1 | 78 |
2%
|
|
| 2 | 145 |
3.7%
|
|
| 3 | 73 |
1.9%
|
|
| 4 | 58 |
1.5%
|
|
| ? | 41 |
1.1%
|