| Value | Category | Cases | |
|---|---|---|---|
| 1 | The lowest level | 4 |
0.3%
|
| 2 | 2 | 11 |
0.9%
|
| 3 | 3 | 47 |
3.8%
|
| 4 | 4 | 124 |
10%
|
| 5 | 5 | 315 |
25.3%
|
| 6 | 6 | 328 |
26.3%
|
| 7 | 7 | 299 |
24%
|
| 8 | 8 | 109 |
8.8%
|
| 9 | 9 | 8 |
0.6%
|