| Value | Category | Cases | |
|---|---|---|---|
| 0 | 30 |
1.3%
|
|
| 1 | 212 |
9.1%
|
|
| 2 | 295 |
12.6%
|
|
| 3 | 278 |
11.9%
|
|
| 4 | 343 |
14.7%
|
|
| 5 | 317 |
13.6%
|
|
| 6 | 116 |
5%
|
|
| 7 | 209 |
8.9%
|
|
| Missing value | 539 |
23%
|