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Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1964 1
1969 1
1970 1
1971 2
1972 1
1973 3
1974 4
1975 7
1976 9
1977 6
1978 11
1979 18
1980 16
1981 10
1982 11
1983 8
1984 15
1985 10
1986 9
1987 11
1988 15
1989 6
1990 10
1991 10
1992 16
1993 7
1994 11
1995 12
1996 14
1997 12
1998 7
1999 15
2000 17
2001 11
2002 9
2003 12
2004 12
2005 9
2006 14
2007 12
2008 14
2009 17
2010 9
2011 16
2012 24
2013 13
2014 10
2015 16
2016 22
2017 20
2018 17
2019 26
2020 7
Text availability
Article attribute
Article type
Publication date

Search Results

558 results
Results by year
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558 results
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