| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very low technical quality | 5 |
1.1%
|
| 2 | 4 |
0.9%
|
|
| 3 | 5 |
1.1%
|
|
| 4 | 8 |
1.8%
|
|
| 5 | 55 |
12.3%
|
|
| 6 | 75 |
16.7%
|
|
| 7 | 78 |
17.4%
|
|
| 8 | 97 |
21.7%
|
|
| 9 | 56 |
12.5%
|
|
| 10 | Very high technical quality | 65 |
14.5%
|
| -99 | 30 | ||
| 11 | Don't know | 61 | |
| Sysmiss | 118 |