The wikipedia articles on the Yugoslav Wars give some figures...

• War in Slovenia: no civilian casualties
  
• War in Croatia: 4,500 dead Croatian civilians, 200,000 displaced; 2,300 dead Serbian civilians, 300,000 to 450,000 displaced
  
• War in Bosnia: 33,000 Bosniac civilians dead; 2,000 Herzegovine civilian dead; 3,600 Serb civilian dead
  
• Kosovo War:

  Around 100 Albanian civilians killed by NATO forces ^[7]
  NATO bombings: Human Rights Watch was only able to verify 500 civilian deaths throughout Yugoslavia, ^[8][9] with other sources stating from 1,200 to 5,700 ^[8]

  
  

In terms of civilian deaths, Bosniacs dwarf all other groups combined. And in terms of displaced civilians, lacking figures for Bosnia for comparison the war in Croatia takes the cookie.

Most economists teach a theoretical framework that has been shown to be fundamentally useless. -- James K. Galbraith