| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, income tax return only | 370 |
9.3%
|
| 2 | Yes, present balance sheet by unofficial records | 215 |
5.4%
|
| 3 | No, not any | 3403 |
85.3%
|
| Sysmiss | 40272 |