| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 2 |
2.9%
|
| 3 | 2 |
2.9%
|
|
| 4 | 1 |
1.4%
|
|
| 5 | 6 |
8.7%
|
|
| 6 | 4 |
5.8%
|
|
| 7 | 12 |
17.4%
|
|
| 8 | 16 |
23.2%
|
|
| 9 | 13 |
18.8%
|
|
| 10 | Very high technical quality | 13 |
18.8%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 40 |