religious denomination with around 2.4% of the population. Most Slovenian Muslims came from Bosnia and Herzegovina, Kosovo, and Macedonia. The third largest denomination, with around 2.2% of the population, is Orthodox Christianity, with most adherents belonging to the Serbian Orthodox Church while a minority belongs to the Macedonian Orthodox Church and other Orthodox churches. In the 2002, around 10% of Slovenes declared themselves as atheists, another 10% professed no specific denomination, and around 16% decided not to answer the question about their religious affiliation. According to the Eurobarometer Poll 2005, 37% of Slovenian citizens responded that "they believe there is a god", whereas 46% answered that "they believe there is some sort of spirit or life force" and 16% that "they do not believe there is any sort of spirit, god, or life force". The distribution of the residents of Slovenia by religion is the following: Roman Catholic 57.8%, atheist 10.1%, Muslim 2.4%, Orthodox Christian 2.3%, Protestant 0.9%, other and unknown 26.5% (2002). According to the published data from the 2002 Slovenian census, out of a total of 47,488 Muslims (2.4% of the total population) 2,804 Muslims (5.90% of the total Muslims in Slovenia) declared themselves as ethnic Slovenian Muslims. Language The official language in Slovenia is Slovene, which is a member of the South Slavic language group. In 2002, Slovene was the native language of around 88% of Slovenia's population according to the census, with more than 92% of the Slovenian population speaking it in their home environment. This places Slovenia among the most homogeneous countries in the EU in terms of the share of speakers of predominant mother tongue. Slovene is sometimes characterized as the most diverse Slavic language in terms of dialects, with different degrees of mutual intelligibility. Accounts of the number of dialects range from as few as seven dialects, often considered dialect groups or dialect bases that are further subdivided into as many as 50 dialects. Other sources characterize the number of dialects as nine or eight. The distribution of speakers by language is the following: Slovene 87.7%, Serbo-Croatian 8%, Hungarian 0.4%, Albanian 0.4%, Macedonian 0.2%, Romani 0.2%, Italian 0.2%, German 0.1%, other 0.1% (Russian, Czech, Ukrainian, English, Slovak, Polish, Romanian, Turkish, French, Bulgarian, Arabic, Spanish, Dutch, "Vlach", Rusyn, Greek, Swedish, Danish or Armenian), unknown 2.7% (2002) CIA World Factbook demographic statistics The following demographic statistics are from the CIA World Factbook, unless otherwise indicated.