| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 7 |
3.2%
|
| 2 | 4 |
1.8%
|
|
| 3 | 5 |
2.3%
|
|
| 4 | 8 |
3.6%
|
|
| 5 | 29 |
13.1%
|
|
| 6 | 28 |
12.6%
|
|
| 7 | 34 |
15.3%
|
|
| 8 | 43 |
19.4%
|
|
| 9 | 44 |
19.8%
|
|
| 10 | Very effective | 20 |
9%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 169 |