| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 1 |
1.3%
|
| 2 | 1 |
1.3%
|
|
| 3 | 4 |
5%
|
|
| 4 | 2 |
2.5%
|
|
| 5 | 10 |
12.5%
|
|
| 6 | 19 |
23.8%
|
|
| 7 | 17 |
21.3%
|
|
| 8 | 16 |
20%
|
|
| 9 | 6 |
7.5%
|
|
| 10 | Very high technical quality | 4 |
5%
|
| 11 | Don't know | 23 | |
| Sysmiss | 1 |