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

Year Number of Results
1946 1
1951 1
1954 2
1958 1
1959 1
1961 2
1965 2
1987 1
1988 1
1989 3
1991 1
1992 1
1993 2
1994 8
1996 3
1997 2
1998 4
1999 1
2000 4
2001 10
2002 1
2003 8
2004 9
2005 1
2006 2
2007 6
2008 4
2009 5
2010 1
2011 7
2012 9
2013 13
2014 9
2015 7
2016 5
2017 8
2018 19
2019 9
2020 3
Text availability
Article attribute
Article type
Publication date

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158 results
Results by year
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