| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 25 |
7.7%
|
| 2 | 31 |
9.5%
|
|
| 3 | 37 |
11.4%
|
|
| 4 | 31 |
9.5%
|
|
| 5 | 40 |
12.3%
|
|
| 6 | 47 |
14.5%
|
|
| 7 | 48 |
14.8%
|
|
| 8 | 27 |
8.3%
|
|
| 9 | 24 |
7.4%
|
|
| 10 | Very effective | 15 |
4.6%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 150 |