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Results by year

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

Year Number of Results
1985 1
1986 2
1987 4
1988 1
1989 9
1990 9
1991 2
1992 8
1993 7
1994 5
1995 8
1996 7
1997 8
1998 12
1999 5
2000 23
2001 15
2002 27
2003 48
2004 45
2005 56
2006 62
2007 76
2008 86
2009 99
2010 138
2011 169
2012 222
2013 263
2014 266
2015 296
2016 350
2017 365
2018 403
2019 515
2020 130
Text availability
Article attribute
Article type
Publication date

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3,334 results
Results by year
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