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

Year Number of Results
1984 1
1987 1
1989 1
1990 1
1993 2
1994 4
1995 2
1996 8
1997 11
1998 4
1999 2
2000 3
2001 10
2002 8
2003 8
2004 6
2005 17
2006 26
2007 24
2008 27
2009 32
2010 35
2011 43
2012 54
2013 65
2014 68
2015 87
2016 104
2017 100
2018 128
2019 158
2020 216
2021 155
Text availability
Article attribute
Article type
Publication date

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1,283 results
Results by year
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