| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 1 |
1.3%
|
| 2 | 1 |
1.3%
|
|
| 3 | 5 |
6.4%
|
|
| 4 | 6 |
7.7%
|
|
| 5 | 17 |
21.8%
|
|
| 6 | 14 |
17.9%
|
|
| 7 | 11 |
14.1%
|
|
| 8 | 15 |
19.2%
|
|
| 9 | 5 |
6.4%
|
|
| 10 | Very effective | 3 |
3.8%
|
| 11 | N/A | 74 | |
| Sysmiss | 42 |