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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 2
1960 2
1961 6
1962 4
1963 7
1964 8
1965 18
1966 36
1967 45
1968 68
1969 65
1970 59
1971 50
1972 53
1973 98
1974 88
1975 116
1976 110
1977 101
1978 107
1979 118
1980 134
1981 126
1982 102
1983 91
1984 76
1985 88
1986 85
1987 81
1988 82
1989 76
1990 58
1991 57
1992 66
1993 60
1994 48
1995 52
1996 50
1997 45
1998 28
1999 35
2000 28
2001 22
2002 16
2003 10
2004 12
2005 13
2006 18
2007 15
2008 21
2009 21
2010 13
2011 16
2012 13
2013 25
2014 18
2015 4
2016 7
2017 15
2018 7
2019 5
2020 0
Text availability
Article attribute
Article type
Publication date

Search Results

2,877 results
Results by year
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