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Results by year

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

Year Number of Results
1979 1
1980 3
1981 1
1982 7
1983 3
1984 3
1985 6
1986 4
1987 6
1988 5
1989 9
1990 11
1991 10
1992 12
1993 9
1994 10
1995 16
1996 10
1997 14
1998 24
1999 19
2000 20
2001 26
2002 25
2003 35
2004 36
2005 63
2006 55
2007 73
2008 65
2009 113
2010 130
2011 166
2012 196
2013 246
2014 290
2015 356
2016 384
2017 439
2018 494
2019 566
2020 127
Text availability
Article attribute
Article type
Publication date

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3,666 results
Results by year
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