| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 1 |
1%
|
| 2 | 2 |
1.9%
|
|
| 3 | 9 |
8.7%
|
|
| 4 | 9 |
8.7%
|
|
| 5 | 20 |
19.2%
|
|
| 6 | 18 |
17.3%
|
|
| 7 | 19 |
18.3%
|
|
| 8 | 14 |
13.5%
|
|
| 9 | 10 |
9.6%
|
|
| 10 | Very effective | 2 |
1.9%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 87 |