| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 3 | 1 |
0.5%
|
|
| 4 | 10 |
4.8%
|
|
| 5 | 27 |
12.9%
|
|
| 6 | 18 |
8.6%
|
|
| 7 | 51 |
24.4%
|
|
| 8 | 76 |
36.4%
|
|
| 9 | 23 |
11%
|
|
| 10 | Very effective | 3 |
1.4%
|
| 11 | Don't know | 132 | |
| Sysmiss | 19 |