Demographics of Indonesia local ethnic languages are the first language of most Indonesians and are still important. Indonesia demographic composition has a relatively young population. According to 2011 estimate, total median age of Indonesia is 28.2 years. Total Fertility Rate (TFR) (Wanted Fertility Rate) and Crude Birth Rate (CBR): Total fertility rate (TFR) and population over age 60 by region as of 2010: Source: "UN World Population Prospects" There are over 300 ethnic groups in Indonesia. 95% of those are of Native Indonesian ancestry. Javanese is the largest group with 100 million people (42%), followed by Sundanese who number nearly 40 million (15%).
Muslims (ethnic group) nation (Serbo-Croatian uses capital letters for names of peoples but small for names of adherents). After the dissolution of Yugoslavia in the early 1990s, the majority of these people, around two million, mostly located in Bosnia and Herzegovina and the region of Sandžak, declare as ethnic Bosniaks ("Bošnjaci", sing. "Bošnjak"). On the other hand, some still use the old name "Muslimani" (Muslims), mostly outside Bosnia and Herzegovina. The election law of Bosnia and Herzegovina as well as the Constitution of Bosnia and Herzegovina, recognizes the results from 1991 population census as results referring to Bosniaks. Muslims (ethnic group) Muslims (Serbo-Croatian,