| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 7 |
5.9%
|
| 2 | 4 |
3.4%
|
|
| 3 | 3 |
2.5%
|
|
| 4 | 11 |
9.2%
|
|
| 5 | 10 |
8.4%
|
|
| 6 | 14 |
11.8%
|
|
| 7 | 15 |
12.6%
|
|
| 8 | 18 |
15.1%
|
|
| 9 | 12 |
10.1%
|
|
| 10 | Very high technical quality | 18 |
15.1%
|
| 11 | Don't know | 7 |
5.9%
|
| Sysmiss | 45 |