| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 1 |
1.3%
|
|
| 3 | 2 |
2.6%
|
|
| 4 | 2 |
2.6%
|
|
| 5 | 7 |
9.1%
|
|
| 6 | 13 |
16.9%
|
|
| 7 | 17 |
22.1%
|
|
| 8 | 19 |
24.7%
|
|
| 9 | 10 |
13%
|
|
| 10 | Very effective | 6 |
7.8%
|
| -99 | 5 | ||
| 11 | Don't know | 67 | |
| Sysmiss | 8 |