| Value | Category | Cases | |
|---|---|---|---|
| 0 | 15 |
7.7%
|
|
| 1 | 4 |
2%
|
|
| 2 | 15 |
7.7%
|
|
| 3 | 17 |
8.7%
|
|
| 4 | 6 |
3.1%
|
|
| 5 | 6 |
3.1%
|
|
| 6 | 3 |
1.5%
|
|
| 7 | 129 |
65.8%
|
|
| Missing value | 1 |
0.5%
|