Google Books Ngram Viewer

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

1500 - 1932 1933 - 1934 1935 - 1966 1967 - 1998 1999 - 2008 philatélie French

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