| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
1.3%
|
| 2 | 4 |
2.5%
|
|
| 3 | 19 |
12%
|
|
| 4 | 11 |
7%
|
|
| 5 | 12 |
7.6%
|
|
| 6 | 19 |
12%
|
|
| 7 | 21 |
13.3%
|
|
| 8 | 32 |
20.3%
|
|
| 9 | 27 |
17.1%
|
|
| 10 | Very effective | 11 |
7%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 235 |