| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
2.2%
|
| 2 | 16 |
7%
|
|
| 3 | 11 |
4.8%
|
|
| 4 | 10 |
4.3%
|
|
| 5 | 27 |
11.7%
|
|
| 6 | 29 |
12.6%
|
|
| 7 | 44 |
19.1%
|
|
| 8 | 46 |
20%
|
|
| 9 | 29 |
12.6%
|
|
| 10 | Very effective | 13 |
5.7%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 210 |