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

Year Number of Results
1982 2
1985 2
1986 2
1987 1
1988 3
1989 1
1990 5
1991 1
1992 1
1993 4
1994 4
1995 7
1996 10
1997 5
1998 4
1999 11
2000 14
2001 12
2002 21
2003 28
2004 33
2005 39
2006 44
2007 53
2008 72
2009 94
2010 124
2011 145
2012 154
2013 165
2014 190
2015 218
2016 213
2017 259
2018 260
2019 316
2020 391
2021 423
2022 201
Text availability
Article attribute
Article type
Publication date

Search Results

3,173 results
Results by year
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3,173 results