| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
0.7%
|
| 2 | 3 |
1.1%
|
|
| 3 | 8 |
3%
|
|
| 4 | 13 |
4.9%
|
|
| 5 | 61 |
22.8%
|
|
| 6 | 57 |
21.3%
|
|
| 7 | 60 |
22.5%
|
|
| 8 | 26 |
9.7%
|
|
| 9 | 19 |
7.1%
|
|
| 10 | Very effective | 18 |
6.7%
|
| 11 | Don't know | 51 | |
| Sysmiss | 78 |