Given the task definition and input, reply with output. This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.

About 30 people have been indicted for participating in genocide or complicity in genocide during the early 1990s in Bosnia. To date, after several plea bargains and some convictions that were successfully challenged on appeal two men, Vujadin Popović and Ljubiša Beara, have been found guilty of committing genocide, Zdravko Tolimir has been found guilty of committing genocide and conspiracy to commit genocide, and two others, Radislav Krstić and Drago Nikolić, have been found guilty of aiding and abetting genocide. Three others have been found guilty of participating in genocides in Bosnia by German courts, one of whom Nikola Jorgić lost an appeal against his conviction in the European Court of Human Rights. A further eight men, former members of the Bosnian Serb security forces were found guilty of genocide by the State Court of Bosnia and Herzegovina (See List of Bosnian genocide prosecutions).
In the 1990s, how many people were indicted for war crimes that were officially defined as genocide?