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%).
Ethnic groups in Europe universally accepted definition of the terms "ethnic group" or "nationality". In the context of European ethnography in particular, the terms "ethnic group", "people", "nationality" or "ethno-linguistic group", are used as mostly synonymous, although preference may vary in usage with respect to the situation specific to the individual countries of Europe. There are eight European ethno-linguistic groups with more than 30 million members residing in Europe. These eight groups between themselves account for some 465 million or about 65% of European population: Smaller ethno-linguistic groups with more than 10 million people residing in Europe include: About 20–25 million residents (3%) are