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Results by year

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

Year Number of Results
1969 1
1973 2
1979 2
1980 1
1981 3
1982 3
1983 1
1984 1
1985 2
1986 1
1987 5
1988 1
1990 1
1992 1
1995 1
1997 3
1998 3
1999 1
2000 5
2001 4
2002 2
2003 3
2004 6
2005 1
2006 5
2007 7
2008 7
2009 1
2010 7
2011 16
2012 10
2013 16
2014 25
2015 38
2016 30
2017 25
2018 38
2019 21
2020 7
Text availability
Article attribute
Article type
Publication date

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284 results
Results by year
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