Google Books Ngram Viewer

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

1960 - 1965 1966 - 1996 1997 - 2001 2002 - 2005 2006 - 2008 cat English
1960 - 1964 1965 - 1997 1998 - 2002 2003 - 2006 2007 - 2008 kitten English
1960 - 1964 1965 - 1996 1997 - 2001 2002 - 2005 2006 - 2008 dog English
1960 - 1966 1967 - 2000 2001 - 2003 2004 - 2005 2006 - 2008 puppy English

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