Usage History of 'instrumental'

The following chart shows how frequently 'instrumental' appeared in printed materials over time. For example, the word 'instrumental' occurred 4 times in books in 1515 and 371,896 times in 2008. From 1515 to 2008, the word 'instrumental' was used a total of 9,961,704 times in books scanned by Google. See Reference: Google Ngram project.

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