| Value | Category | Cases | |
|---|---|---|---|
| 0 | 5 |
2.9%
|
|
| 2 | 2 |
1.1%
|
|
| 3 | 1 |
0.6%
|
|
| 5 | 4 |
2.3%
|
|
| 6 | 2 |
1.1%
|
|
| 7 | 157 |
90.2%
|
|
| Missing value | 3 |
1.7%
|