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Results by year

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

Year Number of Results
1981 1
1989 1
1990 3
1991 1
1993 1
1995 2
1996 1
1997 1
1998 1
1999 3
2000 5
2001 2
2002 1
2003 4
2004 6
2005 2
2006 2
2007 18
2008 16
2009 25
2010 18
2011 20
2012 29
2013 35
2014 41
2015 28
2016 38
2017 45
2018 35
2019 46
2020 3
Text availability
Article attribute
Article type
Publication date

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399 results
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