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%).
Demographics of Serbia censuse have been conducted. The total fertility rate is the number of children born per woman. It is based on fairly good data for the entire period. Sources: Our World In Data and Gapminder Foundation. Data for Serbia excluding Kosovo. Situated in the middle of the Balkans, Serbia is home to many different ethnic groups. According to the 2011 census, Serbs are the largest ethnic group in the country and constitute 83.3% of population. Hungarians are the largest ethnic minority in Serbia, concentrated predominately in northern Vojvodina and representing 3.5% of the country's population (13% in Vojvodina). Roma people constitute