Society, Politics & Law
Looking at population data
...changed over the period 1950-2010. As an example of how to read this chart, in 2010 there were just over 8 million males - the larger blue bar - in the second (5 to 10) age category and about 8 million girls: the height of the overlapped purple column. For the same year, in the 25-30 age band, there were about 7 million females - the larger pink bar, this time - and just...