| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 3 |
1%
|
| 2 | 3 |
1%
|
|
| 3 | 2 |
0.7%
|
|
| 4 | 12 |
4.2%
|
|
| 5 | 44 |
15.4%
|
|
| 6 | 43 |
15%
|
|
| 7 | 46 |
16.1%
|
|
| 8 | 55 |
19.2%
|
|
| 9 | 35 |
12.2%
|
|
| 10 | Very high technical quality | 43 |
15%
|
| 11 | Don't know | 20 |