| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
1.7%
|
| 2 | 1 |
0.8%
|
|
| 3 | 1 |
0.8%
|
|
| 4 | 3 |
2.5%
|
|
| 5 | 6 |
5.1%
|
|
| 6 | 21 |
17.8%
|
|
| 7 | 33 |
28%
|
|
| 8 | 32 |
27.1%
|
|
| 9 | 12 |
10.2%
|
|
| 10 | Very effective | 7 |
5.9%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 176 |