| Value | Category | Cases | |
|---|---|---|---|
| 1 | inheritance | 0 |
0%
|
| 2 | gift/excahnge | 2 |
5.3%
|
| 3 | sales receipt | 6 |
15.8%
|
| 4 | survey plan | 0 |
0%
|
| 5 | Government allowance | 0 |
0%
|
| 6 | tax receipt | 0 |
0%
|
| 7 | utility bill | 0 |
0%
|
| 96 | other | 30 |
78.9%
|
| Sysmiss | 4330 |