| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 1 |
1%
|
| 2 | 5 |
5.1%
|
|
| 3 | 3 |
3%
|
|
| 4 | 4 |
4%
|
|
| 5 | 9 |
9.1%
|
|
| 6 | 10 |
10.1%
|
|
| 7 | 17 |
17.2%
|
|
| 8 | 20 |
20.2%
|
|
| 9 | 18 |
18.2%
|
|
| 10 | Very effective | 12 |
12.1%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 233 |