Usage History of 'unsanitary'

The following chart shows how frequently 'unsanitary' appeared in printed materials over time. For example, the word 'unsanitary' occurred 2 times in books in 1777 and 14,258 times in 2008. From 1777 to 2008, the word 'unsanitary' was used a total of 370,161 times in books scanned by Google. See Reference: Google Ngram project.

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