Demographics of Chile helps explain this relative lack of differentiation, which was maintained by the national reach of radio, and now television, which also helps to diffuse and homogenize colloquial expressions. There are several indigenous languages spoken in Chile: Mapudungun, Quechua, Aymara and Rapa Nui. After the Spanish invasion, Spanish took over as the lingua franca and the indigenous languages have become minority languages, with some now extinct or close to extinction. German is spoken to a great extent in southern Chile, either in small countryside pockets or as a second language among the communities of larger cities. Through initiatives such as the
Demographics of Chile spoke their native language were considered, irrespective of their "racial purity." According to the 2002 census, only indigenous people that still practiced a native culture or spoke a native language were surveyed, and 4.6% of the population (692,192 people) fit that description. Of that 4.6%, 87.3% declared themselves Mapuche. Most of the indigenous population show varying degrees of mixed ancestry. Chile is one of the twenty-two countries to have signed and ratified the only binding international law concerning indigenous peoples, Indigenous and Tribal Peoples Convention, 1989. It was adopted in 1989 as the International Labour Organization (ILO) Convention 169. Chile