Google Books Ngram Viewer

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

1500 - 1963 1964 - 2001 2002 - 2004 2005 - 2007 2008 not let the bedbugs bite English

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