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Results by year

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

Year Number of Results
1952 2
1956 1
1959 2
1976 3
1978 1
1979 2
1980 1
1981 3
1982 7
1983 9
1984 13
1985 7
1986 2
1987 8
1988 16
1989 7
1990 8
1991 12
1992 8
1993 8
1994 8
1995 22
1996 17
1997 21
1998 18
1999 22
2000 11
2001 19
2002 20
2003 12
2004 15
2005 19
2006 15
2007 24
2008 23
2009 24
2010 22
2011 36
2012 25
2013 21
2014 16
2015 33
2016 25
2017 30
2018 20
2019 23
2020 3
Text availability
Article attribute
Article type
Publication date

Search Results

628 results
Results by year
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