Unusual among Balkan nations, indeed anywhere in the world, is that Albania is a homogeneous country with only small minorities. Most of the population is ethnically Albanian (95% according to the CIA World Factbook Feb 2005). A Greek minority (3% of the population) exists, however it could significantly vary according to other sources, (note: in 1989, other estimates of the Greek population ranged from 1% (official Albanian statistics) to 12% (from a Greek organization). Many ethnic Albanians also live in the bordering countries of Serbia (around 100,000) Kosovo(around 2,000,000), Montenegro (around 50,000), and the Republic of Macedonia (around 500,000). Also a small number of ethnic Albanians live in Greece and are called Çam or Cham. Claims over Çam numbers have ranged from 20,000 to over 200,000 but are believed to be underestimated because Athens has not considered the local Albanians to be a separate ethnic group. Since 1991, large numbers of Albanians have emigrated to Greece, Italy, Germany, Switzerland and other European countries.