| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 2 |
1.1%
|
| 2 | 1 |
0.6%
|
|
| 3 | 3 |
1.7%
|
|
| 4 | 7 |
3.9%
|
|
| 5 | 16 |
9%
|
|
| 6 | 26 |
14.6%
|
|
| 7 | 29 |
16.3%
|
|
| 8 | 37 |
20.8%
|
|
| 9 | 31 |
17.4%
|
|
| 10 | Very high technical quality | 26 |
14.6%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 82 |