and Italians), Africans and indigenous. There is a high percentage of mestizos that vary greatly in composition according to each place. There is also a minor population of Asians, especially in Brazil. The two main languages are by far Spanish and Portuguese, followed by French, English and Dutch in smaller numbers. Economically, Brazil, Argentina and Colombia are the wealthiest and most developed nations in the continent. Languages Portuguese, Spanish, English and Dutch are the official languages of UNASUR. Spanish is the official language of Bolivia and Venezuela. Dutch is the official language of Suriname; English is the official language of Guyana. Indigenous languages of UNASUR include Wayuunaiki in northwestern Venezuela (Zulia) and Guaraní, Quechua and Aymara in Bolivia. At least three South American indigenous languages (Quechua, Aymara, and Guarani) are recognized along with Spanish as national languages. Other languages found in UNASUR include, Hindustani and Javanese in Suriname; Italian in Venezuela. Arabic speakers, often of Lebanese, Syrian, or Palestinian descent, can be found in Arab communities in Venezuela. Religion An estimated 87% of South Americans are Christians (69% Roman Catholic, 18% other Christian denominations mainly Traditional Protestants and Evangelicals but also Orthodoxy), accounting for 20% of Christians worldwide. However, in recent years church attendance has declined. Due to the immigration of Indonesian workers, Suriname and Guyana have a large Hindu and Muslim community. Also Kardecist Spiritism can be found in several countries along with Afro-American religions. Economy The economy of UNASUR is divided between the mineral extractivism in the Amazon region and the agriculture present in practically all its States. Industrialization is of medium level to high in diverse regions, although very strong the presence of local industries of origin Foreign (multinational). The extraction and export of oil is notable in Venezuela, which owns the largest world reserves. Bolivia stands out for the production of natural gas, with important reserves of this matter that in recent years have led to what has been known as the "Gas War." The highest nominal GDP in 2018 was Venezuela (62nd worldwide) with 96,328 billion dollars, followed by Bolivia (92nd at the global level) with 41,833 billion dollars. The highest GDP in 2018 was in Venezuela (52nd worldwide) with 330,984 billion dollars, and Bolivia (88th worldwide) with 88,866 billion dollars. The highest GDP per capita in 2018 was held by Suriname with 13,876, followed by Venezuela with 12,388. In terms of nominal per capita