Google Books Ngram Viewer

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

1970 - 1974 1975 - 1977 1978 - 1980 1981 - 2004 2005 - 2008 from what is available English
1970 - 1973 1974 - 1976 1977 - 1979 1980 - 2003 2004 - 2008 from those available English
1970 - 1972 1973 - 1981 1982 - 1983 1984 - 1997 1998 - 2008 from the available supply English

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