Google Books Ngram Viewer

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

1800 - 1913 1914 - 1918 1919 1920 - 1989 1990 - 2008 costaricien French
1800 - 1914 1915 - 1917 1918 - 1919 1920 - 2006 2007 - 2008 costaricienne French
1800 - 1879 1880 - 1931 1932 1933 - 2008 2009 - 2008 costaricain French

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