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Results by year

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

Year Number of Results
1970 1
1973 1
1974 1
1977 1
1978 1
1979 1
1982 4
1984 7
1985 2
1986 2
1987 4
1988 3
1989 3
1990 5
1991 5
1992 7
1993 4
1994 14
1995 3
1996 6
1997 5
1998 9
1999 7
2000 4
2001 11
2002 7
2003 10
2004 13
2005 12
2006 15
2007 19
2008 14
2009 14
2010 30
2011 21
2012 28
2013 34
2014 49
2015 44
2016 47
2017 35
2018 56
2019 37
2020 55
2021 17
Text availability
Article attribute
Article type
Publication date

Search Results

617 results
Results by year
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617 results
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