| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 3 |
1.3%
|
| 2 | 2 |
0.9%
|
|
| 3 | 6 |
2.7%
|
|
| 4 | 13 |
5.8%
|
|
| 5 | 21 |
9.3%
|
|
| 6 | 18 |
8%
|
|
| 7 | 56 |
24.8%
|
|
| 8 | 29 |
12.8%
|
|
| 9 | 30 |
13.3%
|
|
| 10 | Very high technical quality | 48 |
21.2%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 142 |