The new central register compiles data from 13 different data bases collected by local and international institutions dealing with the problem of people who disappeared in the war.
The institute says that additional checks of the register would probably show that some people were reported in several data bases as missing which is why it can be expected that the figure of 34,969 people would be revised down.
So far, forensic experts have unearthed about 23,000 bodies of war victims in single and mass graves, and 21,500 victims have been identified.