| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
0.3%
|
|
| 1 | Not effective at all | 33 |
8.7%
|
| 2 | 23 |
6.1%
|
|
| 3 | 36 |
9.5%
|
|
| 4 | 46 |
12.2%
|
|
| 5 | 49 |
13%
|
|
| 6 | 46 |
12.2%
|
|
| 7 | 57 |
15.1%
|
|
| 8 | 38 |
10.1%
|
|
| 9 | 28 |
7.4%
|
|
| 10 | Very effective | 21 |
5.6%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 97 |