| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 1 |
1.1%
|
| 2 | 1 |
1.1%
|
|
| 3 | 9 |
9.8%
|
|
| 4 | 8 |
8.7%
|
|
| 5 | 14 |
15.2%
|
|
| 6 | 11 |
12%
|
|
| 7 | 19 |
20.7%
|
|
| 8 | 15 |
16.3%
|
|
| 9 | 9 |
9.8%
|
|
| 10 | Very effective | 5 |
5.4%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 283 |