Google Books Ngram Viewer

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

1800 - 1879 1880 - 1980 1981 - 1987 1988 - 1994 1995 - 2000 five people English
1800 - 1816 1817 - 1830 1831 - 1844 1845 - 1963 1964 - 2000 five persons English

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