Google Books Ngram Viewer

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

1920 - 1939 1940 - 1984 1985 - 1989 1990 - 2001 2002 - 2008 gutes neues jahr German

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