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

Year Number of Results
1985 2
1988 1
1989 3
1990 1
1991 7
1992 4
1993 6
1994 4
1995 8
1996 7
1997 8
1998 7
1999 7
2000 5
2001 14
2002 20
2003 41
2004 55
2005 60
2006 75
2007 91
2008 92
2009 118
2010 113
2011 148
2012 205
2013 239
2014 288
2015 303
2016 299
2017 322
2018 393
2019 483
2020 563
2021 307
Text availability
Article attribute
Article type
Publication date

Search Results

3,892 results
Results by year
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