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Results by year

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

Year Number of Results
1964 1
1965 1
1966 1
1967 4
1968 2
1969 1
1971 1
1972 1
1973 1
1974 1
1976 3
1977 1
1978 1
1979 1
1980 1
1981 5
1982 2
1983 4
1984 2
1985 5
1986 4
1987 8
1988 5
1989 15
1990 6
1991 8
1993 2
1994 3
1995 2
1996 3
1997 2
1998 10
1999 2
2000 13
2001 10
2002 10
2003 16
2004 19
2005 30
2006 21
2007 21
2008 31
2009 22
2010 33
2011 36
2012 42
2013 41
2014 41
2015 35
2016 42
2017 45
2018 36
2019 34
2020 4
Text availability
Article attribute
Article type
Publication date

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618 results
Results by year
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618 results
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