| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 1 |
1.1%
|
| 2 | 1 |
1.1%
|
|
| 3 | 3 |
3.3%
|
|
| 4 | 5 |
5.6%
|
|
| 5 | 5 |
5.6%
|
|
| 6 | 11 |
12.2%
|
|
| 7 | 9 |
10%
|
|
| 8 | 23 |
25.6%
|
|
| 9 | 22 |
24.4%
|
|
| 10 | Very high technical quality | 10 |
11.1%
|
| 11 | Don't know | 24 | |
| Sysmiss | 29 |