| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
2.1%
|
| 2 | 3 |
3.1%
|
|
| 3 | 5 |
5.2%
|
|
| 4 | 7 |
7.2%
|
|
| 5 | 13 |
13.4%
|
|
| 6 | 10 |
10.3%
|
|
| 7 | 19 |
19.6%
|
|
| 8 | 29 |
29.9%
|
|
| 9 | 6 |
6.2%
|
|
| 10 | Very effective | 3 |
3.1%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 113 |