| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 0 |
0%
|
| 2 | 1 |
0.3%
|
|
| 3 | 1 |
0.3%
|
|
| 4 | 4 |
1.3%
|
|
| 5 | 9 |
3%
|
|
| 6 | 24 |
8.1%
|
|
| 7 | 73 |
24.5%
|
|
| 8 | 105 |
35.2%
|
|
| 9 | 62 |
20.8%
|
|
| 10 | Very high technical quality | 19 |
6.4%
|
| 11 | Don't know | 51 | |
| Sysmiss | 11 |