| Value | Category | Cases | |
|---|---|---|---|
| -99 | 4 |
1.3%
|
|
| 1 | Very low technical quality | 4 |
1.3%
|
| 2 | 4 |
1.3%
|
|
| 3 | 6 |
1.9%
|
|
| 4 | 11 |
3.6%
|
|
| 5 | 29 |
9.4%
|
|
| 6 | 37 |
12%
|
|
| 7 | 64 |
20.7%
|
|
| 8 | 56 |
18.1%
|
|
| 9 | 17 |
5.5%
|
|
| 10 | Very high technical quality | 13 |
4.2%
|
| 11 | Don’t know | 39 |
12.6%
|
| Sysmiss | 25 |
8.1%
|