| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 1 |
1.3%
|
| 2 | 1 |
1.3%
|
|
| 4 | 1 |
1.3%
|
|
| 5 | 2 |
2.7%
|
|
| 6 | 9 |
12%
|
|
| 7 | 18 |
24%
|
|
| 8 | 17 |
22.7%
|
|
| 9 | 13 |
17.3%
|
|
| 10 | Very high technical quality | 13 |
17.3%
|
| 11 | Don't know | 22 | |
| Sysmiss | 14 |