| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 2 |
0.4%
|
| 2 | 3 |
0.6%
|
|
| 3 | 16 |
3.4%
|
|
| 4 | 23 |
4.9%
|
|
| 5 | 75 |
16.1%
|
|
| 6 | 80 |
17.1%
|
|
| 7 | 98 |
21%
|
|
| 8 | 93 |
19.9%
|
|
| 9 | 49 |
10.5%
|
|
| 10 | Very high technical quality | 28 |
6%
|
| 11 | Don't know | 35 | |
| Sysmiss | 3 |