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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 3
1982 6
1983 3
1984 5
1985 9
1986 15
1987 14
1988 13
1989 24
1990 31
1991 25
1992 30
1993 40
1994 34
1995 66
1996 74
1997 107
1998 107
1999 122
2000 138
2001 178
2002 141
2003 175
2004 230
2005 342
2006 350
2007 408
2008 467
2009 593
2010 641
2011 747
2012 819
2013 983
2014 1153
2015 1323
2016 1413
2017 1529
2018 1799
2019 2096
2020 513
Text availability
Article attribute
Article type
Publication date

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15,049 results
Results by year
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