| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
1.1%
|
| 2 | 3 |
1.1%
|
|
| 3 | 8 |
2.9%
|
|
| 4 | 24 |
8.7%
|
|
| 5 | 32 |
11.6%
|
|
| 6 | 48 |
17.5%
|
|
| 7 | 47 |
17.1%
|
|
| 8 | 31 |
11.3%
|
|
| 9 | 30 |
10.9%
|
|
| 10 | Very effective | 18 |
6.5%
|
| 11 | 31 |
11.3%
|
|
| Sysmiss | 6 |