| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 22 |
9%
|
| 2 | 7 |
2.9%
|
|
| 3 | 2 |
0.8%
|
|
| 4 | 8 |
3.3%
|
|
| 5 | 19 |
7.8%
|
|
| 6 | 23 |
9.4%
|
|
| 7 | 42 |
17.2%
|
|
| 8 | 54 |
22.1%
|
|
| 9 | 35 |
14.3%
|
|
| 10 | Very high technical quality | 32 |
13.1%
|
| 11 | Don't know | 67 | |
| Sysmiss | 15 |