Visit the website www.populationpyramid.net and study the most recent demographic structure of the default pyramid for ‘World’. Dragging your pointer down each age group on the chart gives you total numbers of males and females. You will notice that above the age of 60, female survival is longer than male, increasing in significance with greater age.
To the right of the chart next to the ‘Year’ box, you can alter the year of the population pyramid either backwards or forwards in increments of 1 year or 5 years. Start by increasing the year using the ‘+5’ button and see how a particular age category rises up the pyramid. The year changes both between the buttons and above the chart, as does the total population figure.
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