| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 2 |
0.6%
|
|
| 3 | 4 |
1.2%
|
|
| 4 | 5 |
1.6%
|
|
| 5 | 23 |
7.1%
|
|
| 6 | 41 |
12.7%
|
|
| 7 | 88 |
27.3%
|
|
| 8 | 97 |
30.1%
|
|
| 9 | 40 |
12.4%
|
|
| 10 | Very effective | 22 |
6.8%
|
| -99 | 21 | ||
| 11 | Don't know | 200 | |
| Sysmiss | 37 |