Usage History of 'cooperative'

The following chart shows how frequently 'cooperative' appeared in printed materials over time. For example, the word 'cooperative' occurred 8 times in books in 1515 and 432,609 times in 2008. From 1515 to 2008, the word 'cooperative' was used a total of 16,098,862 times in books scanned by Google. See Reference: Google Ngram project.

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