| Value | Category | Cases | |
|---|---|---|---|
| 1 | Decreased by less than half of the usual income | 29 |
25%
|
| 2 | Decreased by about half of the usual income | 57 |
49.1%
|
| 3 | Decreased by more than half of the usual income | 30 |
25.9%
|
| Sysmiss | 2006 |