| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 2 |
0.6%
|
| 2 | 4 |
1.2%
|
|
| 3 | 7 |
2.2%
|
|
| 4 | 10 |
3.1%
|
|
| 5 | 33 |
10.2%
|
|
| 6 | 65 |
20.1%
|
|
| 7 | 84 |
25.9%
|
|
| 8 | 73 |
22.5%
|
|
| 9 | 27 |
8.3%
|
|
| 10 | Very high technical quality | 19 |
5.9%
|
| 11 | Don't know | 32 | |
| Sysmiss | 10 |