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Results by year

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

Year Number of Results
1955 1
1957 2
1977 1
1981 2
1982 1
1983 1
1984 1
1987 2
1988 1
1989 4
1990 9
1991 5
1992 8
1993 4
1995 6
1996 3
1997 4
1998 4
1999 4
2000 6
2001 10
2002 6
2003 8
2004 4
2005 7
2006 6
2007 7
2008 11
2009 6
2010 12
2011 16
2012 16
2013 17
2014 27
2015 28
2016 33
2017 37
2018 44
2019 39
2020 7
Text availability
Article attribute
Article type
Publication date

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365 results
Results by year
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