Usage History of 'tractability'

The following chart shows how frequently 'tractability' appeared in printed materials over time. For example, the word 'tractability' occurred 2 times in books in 1737 and 4,164 times in 2008. From 1737 to 2008, the word 'tractability' was used a total of 87,170 times in books scanned by Google. See Reference: Google Ngram project.

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