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Summary

Description	English: Data of 2010. The chart has an approximate value with an unequal number in the age groups.
Date	16 August 2011 (original upload date)
Source	Own work (Original caption: “Own Work.”) Data from Ken Burbary Transferred from en.wikipedia to Commons by User:Thompson.matthew using CommonsHelper.
Author	Tatiraju.rishabh at en.wikipedia

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