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Results by year

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

Year Number of Results
1963 2
1973 1
1974 2
1975 4
1976 4
1977 4
1979 2
1980 4
1981 5
1982 2
1983 3
1984 7
1985 3
1986 2
1987 2
1988 5
1989 1
1990 4
1991 4
1992 6
1993 4
1994 11
1995 9
1996 3
1997 5
1998 2
1999 10
2000 4
2001 3
2002 6
2003 5
2004 6
2005 21
2006 28
2007 23
2008 27
2009 26
2010 40
2011 45
2012 52
2013 57
2014 71
2015 68
2016 69
2017 59
2018 71
2019 59
2020 6
Text availability
Article attribute
Article type
Publication date

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744 results
Results by year
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