| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 0 |
0%
|
| 3 | 1 |
0.8%
|
|
| 5 | 4 |
3.3%
|
|
| 6 | 7 |
5.8%
|
|
| 7 | 30 |
24.8%
|
|
| 8 | 26 |
21.5%
|
|
| 9 | 39 |
32.2%
|
|
| 10 | Very high technical quality | 14 |
11.6%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 20 |