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Results by year

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

Year Number of Results
1979 1
1981 2
1984 2
1985 4
1986 2
1987 4
1988 6
1989 3
1990 10
1991 7
1992 7
1993 7
1994 7
1995 10
1996 10
1997 16
1998 22
1999 29
2000 20
2001 35
2002 38
2003 50
2004 68
2005 83
2006 108
2007 127
2008 162
2009 190
2010 222
2011 281
2012 338
2013 415
2014 446
2015 544
2016 643
2017 756
2018 876
2019 985
2020 1237
2021 676
2022 1
Text availability
Article attribute
Article type
Publication date

Search Results

7,593 results
Results by year
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