| Value | Category | Cases | |
|---|---|---|---|
| 1 | No effect | 70 |
29.3%
|
| 2 | Small negative effect | 8 |
3.3%
|
| 3 | Large negative effect | 8 |
3.3%
|
| 4 | Small positive effect | 136 |
56.9%
|
| 5 | Large positive effect | 17 |
7.1%
|
| Sysmiss | 2009 |