Usage History of 'interchanges'

The following chart shows how frequently 'interchanges' appeared in printed materials over time. For example, the word 'interchanges' occurred 2 times in books in 1637 and 11,911 times in 2008. From 1637 to 2008, the word 'interchanges' was used a total of 466,599 times in books scanned by Google. See Reference: Google Ngram project.

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