Google Books Ngram Viewer

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

1900 - 1920 1921 - 1966 1967 - 1974 1975 - 1995 1996 - 2008 sinnlos German
1900 - 1929 1930 - 1931 1932 - 1958 1959 - 2006 2007 - 2008 sinnfrei German

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