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Results by year

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

Year Number of Results
1967 1
1978 1
1979 1
1981 1
1982 1
1984 1
1986 1
1990 2
1991 1
1992 1
1993 1
1994 2
1998 3
1999 2
2000 9
2001 3
2002 5
2003 7
2004 15
2005 17
2006 23
2007 29
2008 13
2009 9
2010 4
2011 10
2012 8
2013 6
2014 4
2015 5
2016 3
2017 4
2018 3
2019 2
2020 0
Text availability
Article attribute
Article type
Publication date

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187 results
Results by year
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