| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
1.1%
|
| 2 | 3 |
1.6%
|
|
| 3 | 12 |
6.4%
|
|
| 4 | 9 |
4.8%
|
|
| 5 | 20 |
10.6%
|
|
| 6 | 16 |
8.5%
|
|
| 7 | 33 |
17.6%
|
|
| 8 | 42 |
22.3%
|
|
| 9 | 30 |
16%
|
|
| 10 | Very effective | 21 |
11.2%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 205 |