::BTW I think the data alone shows the huge population losses ("exoduses") of Serbs from Kosovo during Communist era (the "hundreds of thousands"). Don't they? PaxEquilibrium  

 I think we should respect the data collected by Yugoslav Statistical offices. It makes no sense and would be POV if we start redefining the nationality of people. During the communist era many Serbs (as did many Albanian too) chose to leave Kosovo because Central Serbia was more developed, both economically and culturally. Many Serbs (and Albanians)who wanted to study had to move to for example Belgrade and did never come back, this happened all over Europe, and not just in Kosovo. People moved from rural areas cities and for many Serbs is was natural to study in Serbia (Kosovo did not have a university until 60s). Maybe some Serbs left Kosovo because they did not want to live in an area dominated by Albanians but it is more likely Serbs left Kosovo because of economy and education than Albanians. You are saying more than 400 000 Serbs lived in Kosovo before the 1999 war. I don`t believe this and even Serbian government have not said something like this. 400 000 is 25 % of the population and we all know Albanians in 1991 had 82 % of the population(100- 25 = 75 % Albanians + other minorities??).