| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 7 |
1.4%
|
| 2 | 7 |
1.4%
|
|
| 3 | 41 |
8%
|
|
| 4 | 80 |
15.6%
|
|
| 5 | 92 |
17.9%
|
|
| 6 | 130 |
25.3%
|
|
| 7 | 63 |
12.3%
|
|
| 8 | 57 |
11.1%
|
|
| 9 | 20 |
3.9%
|
|
| 10 | Very effective | 16 |
3.1%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 50 |