| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 4 |
2.4%
|
| 2 | 2 |
1.2%
|
|
| 3 | 4 |
2.4%
|
|
| 4 | 12 |
7.2%
|
|
| 5 | 24 |
14.5%
|
|
| 6 | 27 |
16.3%
|
|
| 7 | 46 |
27.7%
|
|
| 8 | 37 |
22.3%
|
|
| 9 | 9 |
5.4%
|
|
| 10 | Very high technical quality | 1 |
0.6%
|
| 11 | Don't know | 28 | |
| Sysmiss | 4 |