| Value | Category | Cases | |
|---|---|---|---|
| 1 | higher than usual | 71 |
6.4%
|
| 2 | the same as usual | 598 |
53.8%
|
| 3 | less than usual | 406 |
36.5%
|
| 4 | no income | 36 |
3.2%
|
| 11 | .A | 1 | |
| Sysmiss | 2003 |