<cite> Within Europe, E-V13 is especially common in the Balkans and some parts of Italy. In different studies, particularly high frequencies have been observed in Kosovar Albanians (45.6%) (Peričic et al. (2005)), Albanian speakers in the Republic of Macedonia (34.4% reported in Battaglia et al. (2008)), and in some parts of Greece (about 35% in some of the areas studied by King et al. (2008). More generally, high frequencies have also been found in other areas of Greece, and amongst Bulgarians, Romanians, Macedonians, and Serbs.
http://en.wikipedia.org/wiki/E1b1b1a