| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 5 |
0.8%
|
| 2 | 6 |
1%
|
|
| 3 | 5 |
0.8%
|
|
| 4 | 8 |
1.3%
|
|
| 5 | 46 |
7.6%
|
|
| 6 | 44 |
7.3%
|
|
| 7 | 67 |
11.1%
|
|
| 8 | 104 |
17.2%
|
|
| 9 | 112 |
18.5%
|
|
| 10 | Very high technical quality | 114 |
18.8%
|
| 11 | Don't know | 80 |
13.2%
|
| Sysmiss | 15 |
2.5%
|