Google Books Ngram Viewer

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

1800 - 1827 1828 - 1917 1918 - 1930 1931 - 1965 1966 - 2000 amount of taxes English
1800 - 1927 1928 - 1987 1988 - 1992 1993 - 1997 1998 - 2000 amount of data English

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