| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 12 |
2.5%
|
| 2 | 3 |
0.6%
|
|
| 3 | 10 |
2.1%
|
|
| 4 | 10 |
2.1%
|
|
| 5 | 52 |
10.9%
|
|
| 6 | 32 |
6.7%
|
|
| 7 | 51 |
10.7%
|
|
| 8 | 58 |
12.2%
|
|
| 9 | 68 |
14.3%
|
|
| 10 | Very high technical quality | 131 |
27.5%
|
| 11 | Don't know | 50 |
10.5%
|
| Sysmiss | 90 |