| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 2 |
2.1%
|
|
| 3 | 8 |
8.2%
|
|
| 4 | 7 |
7.2%
|
|
| 5 | 12 |
12.4%
|
|
| 6 | 18 |
18.6%
|
|
| 7 | 19 |
19.6%
|
|
| 8 | 15 |
15.5%
|
|
| 9 | 7 |
7.2%
|
|
| 10 | Very effective | 9 |
9.3%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 50 |