| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
4.1%
|
| 2 | 6 |
8.1%
|
|
| 3 | 11 |
14.9%
|
|
| 4 | 12 |
16.2%
|
|
| 5 | 9 |
12.2%
|
|
| 6 | 12 |
16.2%
|
|
| 7 | 10 |
13.5%
|
|
| 8 | 8 |
10.8%
|
|
| 9 | 2 |
2.7%
|
|
| 10 | Very effective | 1 |
1.4%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 74 |