Changchun was also the capital of Manchukuo, a nominally independent puppet state set up by the Japanese in Manchuria, and which existed from 1931 to 1945.
... and 16.9% who are 65 years of age or older. The median age is 39 years. For every 100 females there are 113.3 males. For every 100 females age 18 and over, there are ...