| Value | Category | Cases | |
|---|---|---|---|
| -99 | 1 |
0.5%
|
|
| 1 | Very low technical quality | 6 |
2.8%
|
| 2 | 3 |
1.4%
|
|
| 3 | 4 |
1.9%
|
|
| 4 | 8 |
3.8%
|
|
| 5 | 15 |
7%
|
|
| 6 | 39 |
18.3%
|
|
| 7 | 43 |
20.2%
|
|
| 8 | 42 |
19.7%
|
|
| 9 | 18 |
8.5%
|
|
| 10 | Very high technical quality | 16 |
7.5%
|
| 11 | Don't know | 18 |
8.5%
|
| Sysmiss | 12 |