| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
0.7%
|
| 2 | 1 |
0.4%
|
|
| 3 | 8 |
2.9%
|
|
| 4 | 13 |
4.7%
|
|
| 5 | 39 |
14%
|
|
| 6 | 47 |
16.8%
|
|
| 7 | 46 |
16.5%
|
|
| 8 | 40 |
14.3%
|
|
| 9 | 31 |
11.1%
|
|
| 10 | Very effective | 16 |
5.7%
|
| 11 | 36 |
12.9%
|
|
| Sysmiss | 2 |