| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 1 |
0.4%
|
| 2 | 5 |
2%
|
|
| 3 | 9 |
3.6%
|
|
| 4 | 23 |
9.1%
|
|
| 5 | 41 |
16.2%
|
|
| 6 | 52 |
20.6%
|
|
| 7 | 54 |
21.3%
|
|
| 8 | 50 |
19.8%
|
|
| 9 | 12 |
4.7%
|
|
| 10 | Very effective | 6 |
2.4%
|
| 11 | Don't know | 101 | |
| Sysmiss | 12 |