| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 6 |
2.8%
|
| 2 | 3 |
1.4%
|
|
| 3 | 7 |
3.3%
|
|
| 4 | 11 |
5.2%
|
|
| 5 | 18 |
8.5%
|
|
| 6 | 15 |
7.1%
|
|
| 7 | 9 |
4.3%
|
|
| 8 | 15 |
7.1%
|
|
| 9 | 7 |
3.3%
|
|
| 10 | Very effective | 13 |
6.2%
|
| 11 | 107 |
50.7%
|
|
| Sysmiss | 5 |