| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 6 |
2.5%
|
| 2 | 7 |
2.9%
|
|
| 3 | 7 |
2.9%
|
|
| 4 | 16 |
6.7%
|
|
| 5 | 28 |
11.7%
|
|
| 6 | 41 |
17.1%
|
|
| 7 | 54 |
22.5%
|
|
| 8 | 33 |
13.8%
|
|
| 9 | 25 |
10.4%
|
|
| 10 | Very effective | 23 |
9.6%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 200 |