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Results by year

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

Year Number of Results
1977 1
1980 1
1981 6
1982 2
1983 1
1984 2
1985 3
1986 4
1991 3
1992 2
1993 5
1994 4
1995 2
1996 2
1998 1
1999 2
2000 1
2001 3
2002 4
2003 5
2004 6
2005 4
2006 6
2007 5
2008 13
2009 12
2010 13
2011 25
2012 25
2013 31
2014 25
2015 25
2016 31
2017 34
2018 35
2019 22
2020 8
Text availability
Article attribute
Article type
Publication date

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337 results
Results by year
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