Google Books Ngram Viewer

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

Unknown corpus WMA. Using default corpus instead.

Search in Google Books:

1800 - 2000 2001 - 2004 2005 2006 2007 mp3 file English
1800 - 1907 1908 - 1978 1979 - 1986 1987 - 1993 1994 - 2010 type English

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