| Value | Category | Cases | |
|---|---|---|---|
| 1 | Decreased by less than half of the usual income | 25 |
22.1%
|
| 2 | Decreased by about half of the usual income | 50 |
44.2%
|
| 3 | Decreased by more than half of the usual income | 38 |
33.6%
|
| Sysmiss | 2009 |