Google Books Ngram Viewer

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

1800 - 1882 1883 - 1980 1981 - 1986 1987 - 1993 1994 - 2000 chief executive officer English
1800 - 1943 1944 - 1977 1978 - 1980 1981 - 1996 1997 - 2000 Chief Executive Officer English
Run your own experiment! Raw data is available for download here.
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