| Value | Category | Cases | |
|---|---|---|---|
| 0 | 756 |
4.5%
|
|
| 1 | 3935 |
23.6%
|
|
| 2 | 4131 |
24.7%
|
|
| 3 | 3017 |
18.1%
|
|
| 4 | 1897 |
11.4%
|
|
| 5 | 1455 |
8.7%
|
|
| 6 | 1159 |
6.9%
|
|
| 7 | 285 |
1.7%
|
|
| Missing value | 60 |
0.4%
|