| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
0.8%
|
| 2 | 10 |
4.1%
|
|
| 3 | 10 |
4.1%
|
|
| 4 | 11 |
4.5%
|
|
| 5 | 17 |
7%
|
|
| 6 | 13 |
5.3%
|
|
| 7 | 30 |
12.3%
|
|
| 8 | 32 |
13.2%
|
|
| 9 | 21 |
8.6%
|
|
| 10 | Very effective | 28 |
11.5%
|
| 11 | 69 |
28.4%
|
|
| Sysmiss | 15 |