| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 5 |
2%
|
|
| 3 | 14 |
5.7%
|
|
| 4 | 24 |
9.7%
|
|
| 5 | 43 |
17.4%
|
|
| 6 | 28 |
11.3%
|
|
| 7 | 63 |
25.5%
|
|
| 8 | 36 |
14.6%
|
|
| 9 | 22 |
8.9%
|
|
| 10 | Very effective | 12 |
4.9%
|
| -99 | 1 | ||
| 11 | Don't know | 115 | |
| Sysmiss | 58 |