| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 1 |
0.3%
|
| 2 | 1 |
0.3%
|
|
| 3 | 8 |
2.6%
|
|
| 4 | 17 |
5.6%
|
|
| 5 | 30 |
9.9%
|
|
| 6 | 28 |
9.2%
|
|
| 7 | 66 |
21.7%
|
|
| 8 | 47 |
15.5%
|
|
| 9 | 24 |
7.9%
|
|
| 10 | Very effective | 17 |
5.6%
|
| 11 | 65 |
21.4%
|
|
| Sysmiss | 23 |