Google Books Ngram Viewer

Graph these comma-separated phrases:
case-insensitive
between and from the corpus with smoothing of .  
Search in Google Books:

1800 - 1911 1912 - 1985 1986 - 1987 1988 - 1996 1997 - 2000 douchebag English

Run your own experiment! Raw data is available for download here.
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