| Value | Category | Cases | |
|---|---|---|---|
| 1 | Are taken directly from establishment records | 390 |
44.6%
|
| 2 | Are estimates computed with some precision | 476 |
54.4%
|
| 3 | Are arbitrary and unreliable numbers | 0 |
0%
|
| 4 | Are in some case taken from books and in some case estimates | 9 |
1%
|
| Sysmiss | 123 |