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 - 1991 1992 - 1995 1996 - 2004 2005 - 2008 wondering about the future English
1960 - 1967 1968 - 1997 1998 - 2000 2001 - 2004 2005 - 2008 wondering about the meaning English
1960 - 1967 1968 - 1997 1998 - 2000 2001 - 2003 2004 - 2008 wondering about the nature English
1960 - 1962 1963 - 1990 1991 - 1994 1995 - 2003 2004 - 2008 wondering about the fate English
1960 - 1965 1966 - 1999 2000 - 2002 2003 - 2005 2006 - 2008 wondering about the man English
1960 - 1967 1968 - 1998 1999 - 2001 2002 - 2004 2005 - 2008 wondering about the possibility English
1960 - 1971 1972 - 1998 1999 - 2001 2002 - 2004 2005 - 2008 wondering about the wisdom English
1960 - 1964 1965 - 1985 1986 - 1988 1989 - 2005 2006 - 2008 wondering about the people English
1960 - 1963 1964 - 1986 1987 - 1989 1990 - 2002 2003 - 2008 wondering about the strange English
1960 - 1967 1968 - 1999 2000 - 2002 2003 - 2004 2005 - 2008 wondering about the other English
1960 - 1969 1970 - 1995 1996 - 1998 1999 - 2005 2006 - 2008 wondering about that myself English
1960 - 1969 1970 - 1991 1992 - 1993 1994 - 2005 2006 - 2008 wondering about what to English
1960 - 1974 1975 - 1995 1996 - 1997 1998 - 2005 2006 - 2008 wondering about whether to English

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