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Results by year

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

Year Number of Results
1983 1
1986 1
1987 2
1988 2
1989 1
1990 7
1991 3
1992 5
1993 3
1994 4
1995 10
1996 15
1997 10
1998 9
1999 13
2000 9
2001 7
2002 13
2003 17
2004 18
2005 28
2006 32
2007 44
2008 72
2009 63
2010 52
2011 95
2012 106
2013 134
2014 133
2015 126
2016 149
2017 173
2018 194
2019 207
2020 252
2021 319
2022 377
2023 53
Text availability
Article attribute
Article type
Publication date

Search Results

2,497 results
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2,497 results