| Value | Category | Cases | |
|---|---|---|---|
| 0 | 30 |
1.9%
|
|
| 1 | 35 |
2.2%
|
|
| 2 | 42 |
2.6%
|
|
| 3 | 66 |
4.1%
|
|
| 4 | 86 |
5.3%
|
|
| 5 | 183 |
11.3%
|
|
| 6 | 197 |
12.2%
|
|
| 7 | 306 |
18.9%
|
|
| Missing value | 671 |
41.5%
|