Usage History of 'cochairperson'

The following chart shows how frequently 'cochairperson' appeared in printed materials over time. For example, the word 'cochairperson' occurred 2 times in books in 1940 and 54 times in 2008. From 1940 to 2008, the word 'cochairperson' was used a total of 2,216 times in books scanned by Google. See Reference: Google Ngram project.

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