| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 0 |
0%
|
| 2 | 4 |
2.6%
|
|
| 3 | 1 |
0.7%
|
|
| 4 | 8 |
5.3%
|
|
| 5 | 10 |
6.6%
|
|
| 6 | 19 |
12.6%
|
|
| 7 | 22 |
14.6%
|
|
| 8 | 43 |
28.5%
|
|
| 9 | 27 |
17.9%
|
|
| 10 | Very high technical quality | 17 |
11.3%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 59 |