| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 0 |
0%
|
| 4 | 3 |
3.2%
|
|
| 5 | 6 |
6.4%
|
|
| 6 | 12 |
12.8%
|
|
| 7 | 18 |
19.1%
|
|
| 8 | 31 |
33%
|
|
| 9 | 12 |
12.8%
|
|
| 10 | Very high technical quality | 12 |
12.8%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 20 |