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Results by year

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

Year Number of Results
1952 1
1958 2
1959 1
1962 3
1963 2
1964 6
1965 4
1966 3
1967 1
1968 1
1970 1
1971 4
1972 2
1974 1
1975 3
1976 6
1977 7
1978 7
1979 8
1980 8
1981 14
1982 18
1983 13
1984 17
1985 9
1986 17
1987 16
1988 11
1989 8
1990 8
1991 9
1992 9
1993 10
1994 9
1995 10
1996 10
1997 9
1998 10
1999 14
2000 19
2001 15
2002 18
2003 18
2004 13
2005 20
2006 30
2007 33
2008 32
2009 23
2010 36
2011 27
2012 28
2013 30
2014 33
2015 38
2016 41
2017 42
2018 39
2019 43
2020 4
Text availability
Article attribute
Article type
Publication date

Search Results

828 results
Results by year
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