Google Books Ngram Viewer

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

1800 - 1970 1971 - 1972 1973 - 1983 1984 - 1999 2000 - 2008 vocal fry English
1800 - 1958 1959 - 1996 1997 - 1999 2000 - 2004 2005 - 2008 glottal fry English
1800 - 1939 1940 - 1991 1992 - 1994 1995 - 2002 2003 - 2008 creaky voice English

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