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Results by year

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

Year Number of Results
1951 3
1952 1
1954 2
1955 3
1956 2
1958 1
1960 1
1961 1
1964 2
1965 3
1966 2
1967 3
1968 6
1969 1
1970 4
1971 3
1972 1
1973 3
1974 2
1975 1
1976 1
1977 3
1978 3
1979 4
1980 5
1981 11
1982 5
1983 5
1984 10
1985 16
1986 12
1987 10
1988 7
1989 11
1990 15
1991 11
1992 14
1993 10
1994 12
1995 21
1996 22
1997 28
1998 28
1999 34
2000 30
2001 43
2002 39
2003 49
2004 31
2005 47
2006 39
2007 46
2008 34
2009 48
2010 50
2011 64
2012 65
2013 71
2014 66
2015 52
2016 34
2017 41
2018 31
2019 30
2020 7
Text availability
Article attribute
Article type
Publication date

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1,154 results
Results by year
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