| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
2%
|
| 2 | 1 |
1%
|
|
| 3 | 9 |
9.1%
|
|
| 4 | 5 |
5.1%
|
|
| 5 | 8 |
8.1%
|
|
| 6 | 15 |
15.2%
|
|
| 7 | 25 |
25.3%
|
|
| 8 | 21 |
21.2%
|
|
| 9 | 10 |
10.1%
|
|
| 10 | Very effective | 3 |
3%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 111 |