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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 1
1953 4
1955 6
1957 2
1958 2
1959 1
1961 5
1962 6
1963 10
1964 8
1965 6
1966 9
1967 6
1968 11
1969 23
1970 15
1971 20
1972 6
1973 7
1974 5
1975 11
1976 14
1977 20
1978 29
1979 27
1980 26
1981 36
1982 33
1983 46
1984 42
1985 46
1986 54
1987 64
1988 57
1989 59
1990 68
1991 62
1992 51
1993 55
1994 78
1995 70
1996 78
1997 84
1998 87
1999 112
2000 108
2001 115
2002 98
2003 91
2004 109
2005 111
2006 128
2007 131
2008 136
2009 119
2010 128
2011 135
2012 134
2013 123
2014 112
2015 113
2016 123
2017 112
2018 122
2019 137
2020 22
Text availability
Article attribute
Article type
Publication date

Search Results

3,642 results
Results by year
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