Google Books Ngram Viewer

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

1500 - 1761 1762 1763 - 1778 1779 - 1794 1795 - 1834 œconomy English
1500 - 1818 1819 - 1974 1975 - 1983 1984 - 1991 1992 - 2000 economy English

Run your own experiment! Raw data is available for download here.
© 2013 Google - Privacy & Terms - About Google - About Google Books - About Ngram Viewer