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Results by year

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

Year Number of Results
1973 1
1975 1
1976 1
1977 1
1979 1
1980 1
1985 1
1986 1
1987 3
1988 4
1989 4
1990 3
1991 5
1992 5
1993 12
1994 11
1995 7
1996 17
1997 9
1998 24
1999 18
2000 30
2001 34
2002 33
2003 30
2004 39
2005 58
2006 48
2007 47
2008 42
2009 43
2010 36
2011 43
2012 38
2013 43
2014 39
2015 34
2016 41
2017 34
2018 17
2019 12
2020 0
Text availability
Article attribute
Article type
Publication date

Search Results

778 results
Results by year
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