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Results by year

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

Year Number of Results
1980 1
1984 1
1986 1
1987 1
1993 1
1996 3
1997 1
1998 3
1999 1
2000 1
2001 1
2002 4
2003 1
2004 13
2005 7
2006 9
2007 11
2008 9
2009 4
2010 10
2011 12
2012 16
2013 8
2014 15
2015 21
2016 22
2017 17
2018 16
2019 19
2020 14
2021 3
Text availability
Article attribute
Article type
Publication date

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225 results
Results by year
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225 results
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