| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 - Very low technical quality | 2 |
0.8%
|
| 2 | 2 | 1 |
0.4%
|
| 3 | 3 | 5 |
1.9%
|
| 4 | 4 | 9 |
3.5%
|
| 5 | 5 | 20 |
7.8%
|
| 6 | 6 | 30 |
11.6%
|
| 7 | 7 | 33 |
12.8%
|
| 8 | 8 | 49 |
19%
|
| 9 | 9 | 26 |
10.1%
|
| 10 | 10 - Very high technical quality | 16 |
6.2%
|
| 11 | Don't know | 67 |
26%
|