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Results by year

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

Year Number of Results
1981 1
1982 1
1983 2
1984 1
1985 2
1986 6
1987 5
1988 3
1989 7
1990 2
1991 8
1992 8
1993 5
1994 8
1995 9
1996 12
1997 12
1998 12
1999 18
2000 11
2001 12
2002 17
2003 20
2004 18
2005 22
2006 15
2007 23
2008 27
2009 22
2010 21
2011 28
2012 22
2013 32
2014 17
2015 14
2016 26
2017 22
2018 31
2019 26
2020 8
Text availability
Article attribute
Article type
Publication date

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503 results
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