| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 1 |
0.7%
|
| 3 | 3 |
2.1%
|
|
| 4 | 3 |
2.1%
|
|
| 5 | 23 |
16.3%
|
|
| 6 | 9 |
6.4%
|
|
| 7 | 22 |
15.6%
|
|
| 8 | 27 |
19.1%
|
|
| 9 | 34 |
24.1%
|
|
| 10 | Very high technical quality | 19 |
13.5%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 65 |