| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 0 |
0%
|
| 3 | 3 |
3.1%
|
|
| 4 | 5 |
5.2%
|
|
| 5 | 11 |
11.5%
|
|
| 6 | 20 |
20.8%
|
|
| 7 | 20 |
20.8%
|
|
| 8 | 18 |
18.8%
|
|
| 9 | 14 |
14.6%
|
|
| 10 | Very high technical quality | 5 |
5.2%
|
| 11 | Don't know | 21 | |
| Sysmiss | 17 |