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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
1988 1
1991 1
1993 1
1994 1
1995 2
1996 3
1997 4
1998 4
1999 12
2000 5
2001 6
2002 9
2003 8
2004 13
2005 10
2006 6
2007 12
2008 6
2009 19
2010 17
2011 17
2012 13
2013 23
2014 18
2015 26
2016 15
2017 24
2018 24
2019 16
2020 3
Text availability
Article attribute
Article type
Publication date

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261 results
Results by year
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