| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
1.7%
|
| 2 | 1 |
0.8%
|
|
| 3 | 8 |
6.7%
|
|
| 4 | 10 |
8.4%
|
|
| 5 | 18 |
15.1%
|
|
| 6 | 22 |
18.5%
|
|
| 7 | 18 |
15.1%
|
|
| 8 | 17 |
14.3%
|
|
| 9 | 14 |
11.8%
|
|
| 10 | Very effective | 9 |
7.6%
|
| 11 | N/A | 73 | |
| Sysmiss | 30 |