| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 4 | 1 |
1.1%
|
|
| 5 | 6 |
6.6%
|
|
| 6 | 9 |
9.9%
|
|
| 7 | 15 |
16.5%
|
|
| 8 | 25 |
27.5%
|
|
| 9 | 18 |
19.8%
|
|
| 10 | Very effective | 17 |
18.7%
|
| -99 | 7 | ||
| 11 | Don't know | 52 | |
| Sysmiss | 7 |