Google Books Ngram Viewer

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

1960 - 1965 1966 - 1982 1983 - 1986 1987 - 2002 2003 - 2008 age group English
1960 - 1974 1975 - 1997 1998 - 2000 2001 - 2004 2005 - 2008 age cohort English
1960 - 1968 1969 - 1980 1981 - 1983 1984 - 2002 2003 - 2008 age category English
1960 - 1967 1968 - 1994 1995 - 1998 1999 - 2003 2004 - 2008 age segment English
1960 - 1966 1967 - 1981 1982 - 1983 1984 - 1991 1992 - 2008 age sector English
1960 - 1964 1965 - 1976 1977 - 1979 1980 - 2001 2002 - 2008 age bracket English

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