Bolivia is inhabited mostly by Quechua people (45.6%) and Aymara people (42.4%), while minorities include 37 Indigenous peoples in Bolivia (0.3% average per group). The Spanish, Quechua language, Aymara language, Guarani languages, as well as 34 other native languages are the official language of Bolivia. Spanish is the most-spoken language (60.7%) within the population. The main religions of Bolivia are Catholicism (81.8%), Evangelicalism (11.5%), and Protestantism (2.6%). Education is of poor quality, and has a 91.2% literacy rate. An estimated 7.6% of the countrys gross domestic product (GDP) is spent on education. The average monthly household income was Boliviano1,378 ($293) in 1994. In December 2013 the unemployment rate was 3.2% of the working population. Average urbanisation rate in Bolivia is 67%.. What are the two major ethnic groups in Bolivia?