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Results by year

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

Year Number of Results
1957 1
1960 1
1964 1
1976 3
1977 1
1980 1
1984 1
1985 1
1987 1
1989 2
1990 1
1991 1
1992 4
1995 1
1996 1
1997 5
2000 1
2001 3
2002 5
2003 2
2004 4
2005 4
2006 4
2007 5
2008 5
2009 9
2010 5
2011 8
2012 7
2013 10
2014 16
2015 23
2016 12
2017 11
2018 10
2019 19
2020 2
Text availability
Article attribute
Article type
Publication date

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171 results
Results by year
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