| Value | Category | Cases | |
|---|---|---|---|
| 0 | 9 |
4.7%
|
|
| 1 | 74 |
38.9%
|
|
| 2 | 59 |
31.1%
|
|
| 3 | 35 |
18.4%
|
|
| 4 | 8 |
4.2%
|
|
| 6 | 5 |
2.6%
|
|
| Missing value | 168 |