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Results by year

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

Year Number of Results
1947 1
1948 1
1955 1
1957 1
1958 4
1959 2
1960 3
1961 1
1962 1
1964 2
1965 2
1966 3
1967 1
1969 3
1970 5
1971 3
1972 4
1975 2
1976 3
1977 1
1978 2
1979 6
1980 2
1981 3
1982 9
1983 4
1984 5
1985 4
1986 7
1987 9
1988 7
1989 13
1990 20
1991 12
1992 15
1993 19
1994 28
1995 13
1996 27
1997 16
1998 25
1999 26
2000 39
2001 24
2002 28
2003 40
2004 49
2005 50
2006 50
2007 52
2008 48
2009 59
2010 56
2011 54
2012 52
2013 62
2014 75
2015 102
2016 94
2017 78
2018 113
2019 108
2020 21
Text availability
Article attribute
Article type
Publication date

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1,449 results
Results by year
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