| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 1 |
0.7%
|
| 2 | 2 |
1.4%
|
|
| 3 | 1 |
0.7%
|
|
| 4 | 2 |
1.4%
|
|
| 5 | 8 |
5.8%
|
|
| 6 | 9 |
6.5%
|
|
| 7 | 14 |
10.1%
|
|
| 8 | 51 |
36.7%
|
|
| 9 | 26 |
18.7%
|
|
| 10 | Very high technical quality | 25 |
18%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 61 |