Median Age 2015

Median age is the age that divides a population into two numerically equal groups - that is, half the people are younger than this age and half are older.

It is a single index that summarizes the age distribution of a population

Country               Median Age
Japan                    46.1
Germany               46.1
France                  40.9
UK                        40.4
Russia                   38.9
USA                      37.6
China                     36.7
Brazil                     30.7
India                      27.0