Europe
In 2017, the population of Europe was estimated to be 742 million according to , which is slightly more than one-ninth of the world's population. This number includes Asian Russia (Siberia, about 36 million people) but excludes the European part of Turkey, Cyprus and the Transcaucasian countries.
A century ago, Europe had nearly a quarter of the world's population. The population of Europe has grown in the past century, but in other areas of the world (in particular Africa and Asia) the population has grown far more quickly. Among the continents, Europe has a relatively high population density, second only to Asia. Most of Europe is in a mode of Sub-replacement fertility, which means that each new(-born) generation is being less populous than the older.
The most densely populated country in Europe (and in the world) is the microstate of Monaco.
Ageing of Europe
In 2006 a national programme was developed with a goal to reverse the decline by 2020. A study published shortly after in 2007 showed that the rate of population decrease had slowed: According to the study, deaths exceeded births by 1.3 times, down from 1.5 times in the previous year, thus, if the net decrease in January–August 2006 was 408,200 people, in the same period during 2007 it was 196,600. The decline continued to slow in 2008 with only half the population loss compared to 2007. The reversal continued at the same pace in 2009 as death rates continued to fall, birth rates continued to rise and net migration stayed steady at about 250,000; in 2009 Russia saw population growth for the first time in 15 years.