Google Books Ngram Viewer

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

1908 - 1976 1977 - 2003 2004 - 2005 2006 - 2007 2008 i could care less English
1908 - 1959 1960 - 1981 1982 - 1986 1987 - 2003 2004 - 2008 i could not care less English

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