| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 2 |
2%
|
|
| 4 | 1 |
1%
|
|
| 5 | 3 |
3.1%
|
|
| 6 | 13 |
13.3%
|
|
| 7 | 22 |
22.4%
|
|
| 8 | 33 |
33.7%
|
|
| 9 | 20 |
20.4%
|
|
| 10 | Very effective | 4 |
4.1%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 43 |