Usage History of 'rolfs'

The following chart shows how frequently 'rolfs' appeared in printed materials over time. For example, the word 'rolfs' occurred 2 times in books in 1689 and 1,279 times in 2008. From 1689 to 2008, the word 'rolfs' was used a total of 31,032 times in books scanned by Google. See Reference: Google Ngram project.

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