| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
0.9%
|
| 2 | 4 |
1.8%
|
|
| 3 | 14 |
6.2%
|
|
| 4 | 22 |
9.7%
|
|
| 5 | 31 |
13.7%
|
|
| 6 | 46 |
20.4%
|
|
| 7 | 43 |
19%
|
|
| 8 | 33 |
14.6%
|
|
| 9 | 23 |
10.2%
|
|
| 10 | Very effective | 8 |
3.5%
|
| -99 | 75 | ||
| 11 | N/A | 200 | |
| Sysmiss | 156 |