| Value | Category | Cases | |
|---|---|---|---|
| 1 | a complete set of written accounts for tax purposes | 0 |
0%
|
| 2 | simplified written accounts not for tax purposes | 1 |
0%
|
| 3 | informal records of orders, sales, purchases | 2 |
0.1%
|
| 4 | no records are kept | 100 |
3.3%
|
| 98 | don't know | 28 |
0.9%
|
| Missing value | 2924 |
95.7%
|