| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
2%
|
| 2 | 9 |
3.7%
|
|
| 3 | 15 |
6.1%
|
|
| 4 | 12 |
4.9%
|
|
| 5 | 20 |
8.2%
|
|
| 6 | 45 |
18.4%
|
|
| 7 | 53 |
21.7%
|
|
| 8 | 49 |
20.1%
|
|
| 9 | 20 |
8.2%
|
|
| 10 | Very effective | 16 |
6.6%
|
| 11 | NA | 0 |
0%
|
| 12 | Don't know | 0 |
0%
|
| Sysmiss | 196 |