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Results by year

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

Year Number of Results
1982 1
1984 1
1985 2
1986 1
1987 1
1988 1
1989 4
1990 3
1991 3
1992 7
1993 8
1994 6
1995 6
1996 8
1997 7
1998 8
1999 9
2000 20
2001 17
2002 11
2003 23
2004 23
2005 26
2006 21
2007 35
2008 46
2009 43
2010 75
2011 76
2012 99
2013 87
2014 90
2015 79
2016 108
2017 112
2018 157
2019 190
2020 212
2021 231
2022 282
2023 77
Text availability
Article attribute
Article type
Publication date

Search Results

1,997 results
Results by year
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1,997 results