| Value | Category | Cases | |
|---|---|---|---|
| -99 | 5 |
2.1%
|
|
| 1 | Not effective at all | 4 |
1.7%
|
| 2 | 3 |
1.3%
|
|
| 3 | 4 |
1.7%
|
|
| 4 | 3 |
1.3%
|
|
| 5 | 10 |
4.3%
|
|
| 6 | 7 |
3%
|
|
| 7 | 15 |
6.4%
|
|
| 8 | 20 |
8.6%
|
|
| 9 | 17 |
7.3%
|
|
| 10 | Very effective | 13 |
5.6%
|
| 11 | 132 |
56.7%
|
|
| Sysmiss | 27 |