| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 6 |
1.9%
|
| 2 | 4 |
1.3%
|
|
| 3 | 8 |
2.6%
|
|
| 4 | 7 |
2.3%
|
|
| 5 | 16 |
5.2%
|
|
| 6 | 20 |
6.5%
|
|
| 7 | 35 |
11.3%
|
|
| 8 | 82 |
26.5%
|
|
| 9 | 73 |
23.5%
|
|
| 10 | Very high technical quality | 59 |
19%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 81 |