| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 2 |
0.9%
|
| 2 | 7 |
3%
|
|
| 3 | 6 |
2.6%
|
|
| 4 | 10 |
4.3%
|
|
| 5 | 27 |
11.7%
|
|
| 6 | 25 |
10.9%
|
|
| 7 | 35 |
15.2%
|
|
| 8 | 47 |
20.4%
|
|
| 9 | 17 |
7.4%
|
|
| 10 | Very high technical quality | 54 |
23.5%
|
| 11 | Don't know | 61 | |
| Sysmiss | 28 |