Usage History of 'competency'

The following chart shows how frequently 'competency' appeared in printed materials over time. For example, the word 'competency' occurred 2 times in books in 1624 and 144,441 times in 2008. From 1624 to 2008, the word 'competency' was used a total of 2,783,252 times in books scanned by Google. See Reference: Google Ngram project.

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