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Results by year

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

Year Number of Results
1952 1
1959 1
1988 1
1989 1
1991 1
1993 3
1995 2
1996 1
1997 2
1998 1
1999 6
2000 3
2001 1
2002 5
2003 4
2004 2
2005 1
2006 3
2007 4
2008 9
2009 5
2010 6
2011 11
2012 10
2013 20
2014 17
2015 17
2016 13
2017 11
2018 20
2019 15
2020 3
Text availability
Article attribute
Article type
Publication date

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171 results
Results by year
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