| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 2 |
1.7%
|
|
| 3 | 6 |
5.2%
|
|
| 4 | 7 |
6%
|
|
| 5 | 20 |
17.2%
|
|
| 6 | 26 |
22.4%
|
|
| 7 | 21 |
18.1%
|
|
| 8 | 12 |
10.3%
|
|
| 9 | 10 |
8.6%
|
|
| 10 | Very effective | 12 |
10.3%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 239 |