| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 10 |
3.1%
|
| 2 | 20 |
6.2%
|
|
| 3 | 30 |
9.3%
|
|
| 4 | 39 |
12.1%
|
|
| 5 | 52 |
16.1%
|
|
| 6 | 48 |
14.9%
|
|
| 7 | 34 |
10.5%
|
|
| 8 | 48 |
14.9%
|
|
| 9 | 26 |
8%
|
|
| 10 | Very effective | 16 |
5%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 152 |