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Results by year

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

Year Number of Results
1959 1
1960 1
1963 2
1964 5
1965 2
1966 3
1967 1
1968 3
1969 4
1970 5
1971 5
1972 7
1973 6
1974 6
1975 2
1976 4
1977 3
1978 10
1979 12
1980 12
1981 13
1982 15
1983 9
1984 29
1985 31
1986 34
1987 43
1988 43
1989 26
1990 45
1991 38
1992 26
1993 23
1994 21
1995 19
1996 23
1997 26
1998 26
1999 24
2000 27
2001 23
2002 25
2003 17
2004 11
2005 23
2006 27
2007 28
2008 26
2009 31
2010 24
2011 25
2012 29
2013 16
2014 18
2015 11
2016 11
2017 12
2018 6
2019 1
2020 1
2021 3
Text availability
Article attribute
Article type
Publication date

Search Results

953 results
Results by year
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953 results
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