| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 2 |
1.6%
|
|
| 3 | 8 |
6.5%
|
|
| 4 | 15 |
12.2%
|
|
| 5 | 20 |
16.3%
|
|
| 6 | 20 |
16.3%
|
|
| 7 | 24 |
19.5%
|
|
| 8 | 26 |
21.1%
|
|
| 9 | 4 |
3.3%
|
|
| 10 | Very effective | 4 |
3.3%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 252 |