Google Books Ngram Viewer

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

1960 - 1985 1986 - 1998 1999 2000 - 2004 2005 - 2008 demand for emergency food English
1960 - 1976 1977 - 1989 1990 - 1991 1992 - 2006 2007 - 2008 demand for emergency services English
1960 - 1986 1987 - 1989 1990 1991 - 2001 2002 - 2004 demand for emergency shelter English
1960 - 1971 1972 - 1978 1979 1980 - 2002 2003 - 2008 demand for emergency medical English
1960 - 1971 1972 - 1984 1985 1986 - 1998 1999 - 2008 demand for emergency room English
1960 - 1970 1971 - 1981 1982 1983 - 2006 2007 - 2008 demand for emergency care English

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