| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 2 |
1.4%
|
|
| 3 | 6 |
4.1%
|
|
| 4 | 5 |
3.4%
|
|
| 5 | 18 |
12.2%
|
|
| 6 | 21 |
14.2%
|
|
| 7 | 26 |
17.6%
|
|
| 8 | 42 |
28.4%
|
|
| 9 | 19 |
12.8%
|
|
| 10 | Very effective | 9 |
6.1%
|
| -99 | 8 | ||
| 11 | Don't know | 79 | |
| Sysmiss | 25 |