| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 1 |
1.3%
|
| 2 | 1 |
1.3%
|
|
| 3 | 2 |
2.6%
|
|
| 4 | 1 |
1.3%
|
|
| 5 | 3 |
3.9%
|
|
| 6 | 11 |
14.5%
|
|
| 7 | 19 |
25%
|
|
| 8 | 19 |
25%
|
|
| 9 | 10 |
13.2%
|
|
| 10 | Very high technical quality | 9 |
11.8%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 9 |