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

Year Number of Results
1982 1
1983 1
1986 1
1987 3
1988 2
1989 2
1990 1
1991 1
1992 3
1993 1
1995 1
1996 9
1997 11
1998 4
1999 7
2000 12
2001 8
2002 11
2003 14
2004 20
2005 11
2006 21
2007 12
2008 16
2009 28
2010 29
2011 36
2012 44
2013 59
2014 81
2015 75
2016 76
2017 96
2018 88
2019 103
2020 125
2021 61
Text availability
Article attribute
Article type
Publication date

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974 results
Results by year
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