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

Year Number of Results
1929 1
1975 1
1979 1
1983 1
1984 2
1985 1
1986 2
1987 2
1988 2
1989 6
1990 9
1991 5
1992 7
1993 20
1994 12
1995 17
1996 21
1997 12
1998 17
1999 15
2000 16
2001 21
2002 28
2003 34
2004 35
2005 34
2006 31
2007 26
2008 30
2009 41
2010 48
2011 45
2012 46
2013 44
2014 53
2015 67
2016 67
2017 83
2018 52
2019 66
2020 15
Text availability
Article attribute
Article type
Publication date

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870 results
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