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Results by year

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

Year Number of Results
1966 1
1968 1
1971 2
1974 2
1976 1
1977 2
1979 7
1980 1
1981 3
1982 1
1984 2
1985 1
1987 2
1988 2
1989 8
1990 7
1991 6
1992 8
1993 8
1994 8
1995 12
1996 10
1997 5
1998 11
1999 24
2000 21
2001 27
2002 27
2003 23
2004 16
2005 28
2006 20
2007 32
2008 38
2009 36
2010 46
2011 43
2012 59
2013 60
2014 77
2015 75
2016 65
2017 68
2018 45
2019 55
2020 7
Text availability
Article attribute
Article type
Publication date

Search Results

896 results
Results by year
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