Google Books Ngram Viewer

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

1720 - 1975 1976 - 2000 2001 - 2003 2004 - 2005 2006 - 2008 saturated fat English
1720 - 1989 1990 - 2000 2001 2002 - 2007 2008 monounsaturated fat English
1720 - 1973 1974 - 1986 1987 - 1989 1990 - 2003 2004 - 2008 polyunsaturated fat English
1720 - 1997 1998 - 2005 2006 2007 2008 trans fat English

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