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Results by year

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

Year Number of Results
1958 1
1960 1
1964 1
1965 1
1968 1
1981 4
1982 4
1983 7
1984 9
1985 11
1986 11
1987 13
1988 13
1989 11
1990 14
1991 23
1992 25
1993 28
1994 32
1995 29
1996 30
1997 32
1998 25
1999 30
2000 29
2001 58
2002 57
2003 87
2004 114
2005 117
2006 154
2007 179
2008 179
2009 231
2010 260
2011 315
2012 410
2013 500
2014 569
2015 647
2016 654
2017 691
2018 745
2019 863
2020 185
Text availability
Article attribute
Article type
Publication date

Search Results

6,658 results
Results by year
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