| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 9 |
2.1%
|
| 2 | 17 |
4%
|
|
| 3 | 28 |
6.5%
|
|
| 4 | 38 |
8.8%
|
|
| 5 | 73 |
17%
|
|
| 6 | 64 |
14.9%
|
|
| 7 | 83 |
19.3%
|
|
| 8 | 52 |
12.1%
|
|
| 9 | 46 |
10.7%
|
|
| 10 | Very effective | 20 |
4.7%
|
| 11 | Don't know | 60 | |
| Sysmiss | 15 |