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Results by year

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

Year Number of Results
1964 1
1965 1
1967 1
1974 1
1980 1
1982 1
1983 1
1985 1
1986 1
1987 6
1988 3
1989 4
1990 1
1991 4
1992 12
1993 17
1994 18
1995 11
1996 22
1997 20
1998 22
1999 28
2000 31
2001 39
2002 45
2003 60
2004 76
2005 86
2006 86
2007 101
2008 136
2009 142
2010 165
2011 181
2012 233
2013 261
2014 269
2015 307
2016 291
2017 310
2018 386
2019 484
2020 590
2021 364
Text availability
Article attribute
Article type
Publication date

Search Results

4,299 results
Results by year
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