| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 1 |
0.4%
|
| 2 | 3 |
1.1%
|
|
| 3 | 15 |
5.5%
|
|
| 4 | 22 |
8%
|
|
| 5 | 47 |
17.2%
|
|
| 6 | 51 |
18.6%
|
|
| 7 | 48 |
17.5%
|
|
| 8 | 47 |
17.2%
|
|
| 9 | 28 |
10.2%
|
|
| 10 | Very effective | 12 |
4.4%
|
| -99 | 61 | ||
| 11 | N/A | 171 | |
| Sysmiss | 151 |