| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 2 |
0.5%
|
|
| 3 | 2 |
0.5%
|
|
| 4 | 8 |
2.2%
|
|
| 5 | 32 |
8.7%
|
|
| 6 | 72 |
19.5%
|
|
| 7 | 78 |
21.1%
|
|
| 8 | 85 |
23%
|
|
| 9 | 63 |
17.1%
|
|
| 10 | Very effective | 27 |
7.3%
|
| 11 | Don't know | 35 | |
| Sysmiss | 19 |