| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 1 |
1.6%
|
| 2 | 2 |
3.1%
|
|
| 3 | 8 |
12.5%
|
|
| 4 | 5 |
7.8%
|
|
| 5 | 17 |
26.6%
|
|
| 6 | 10 |
15.6%
|
|
| 7 | 7 |
10.9%
|
|
| 8 | 10 |
15.6%
|
|
| 9 | 3 |
4.7%
|
|
| 10 | Very effective | 1 |
1.6%
|
| 11 | N/A | 52 | |
| Sysmiss | 18 |