| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 4 |
1.9%
|
| 2 | 5 |
2.3%
|
|
| 3 | 8 |
3.7%
|
|
| 4 | 9 |
4.2%
|
|
| 5 | 15 |
7%
|
|
| 6 | 12 |
5.6%
|
|
| 7 | 24 |
11.2%
|
|
| 8 | 16 |
7.4%
|
|
| 9 | 12 |
5.6%
|
|
| 10 | Very effective | 19 |
8.8%
|
| 11 | 91 |
42.3%
|
|
| Sysmiss | 1 |