| Value | Category | Cases | |
|---|---|---|---|
| 1 | Material is almost new, in great condition. | 573 |
84.4%
|
| 2 | Material is ok, maybe some pages are missing. | 32 |
4.7%
|
| 3 | Material is in bad condition, several pages are missing. | 7 |
1%
|
| 4 | received it but lost it | 67 |
9.9%
|
| Sysmiss | 1807 |