| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 4 |
0.8%
|
| 2 | 22 |
4.4%
|
|
| 3 | 39 |
7.7%
|
|
| 4 | 74 |
14.7%
|
|
| 5 | 98 |
19.4%
|
|
| 6 | 92 |
18.2%
|
|
| 7 | 86 |
17%
|
|
| 8 | 51 |
10.1%
|
|
| 9 | 28 |
5.5%
|
|
| 10 | Very effective | 11 |
2.2%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 58 |