| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 1 |
0.3%
|
| 2 | 2 |
0.6%
|
|
| 3 | 5 |
1.6%
|
|
| 4 | 10 |
3.2%
|
|
| 5 | 40 |
12.7%
|
|
| 6 | 49 |
15.6%
|
|
| 7 | 45 |
14.3%
|
|
| 8 | 52 |
16.6%
|
|
| 9 | 27 |
8.6%
|
|
| 10 | Very effective | 15 |
4.8%
|
| 11 | 68 |
21.7%
|
|
| Sysmiss | 13 |