With a population of 80.2 million according to the 2011 census, rising to 83.1 million , Germany is the most populous country in the European Union, the second-most populous country in Europe after Russia, and the nineteenth-most populous country in the world. Its population density stands at 227 inhabitants per square kilometre (588 per square mile). The overall life expectancy in Germany at birth is 80.19 years (77.93 years for males and 82.58 years for females). The fertility rate of 1.41 children born per woman (2011 estimates) is below the replacement rate of 2.1 and is one of the lowest fertility rates in the world. Since the 1970s, Germany's death rate has exceeded its birth rate. However, Germany is witnessing increased birth rates and migration rates since the beginning of the 2010s, particularly a rise in the number of well-educated migrants. Germany has the third oldest population in the world, with an average age of 47.4 years.