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Results by year

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

Year Number of Results
1962 1
1964 3
1966 7
1967 7
1968 8
1969 9
1970 6
1971 16
1972 4
1973 8
1974 19
1975 28
1976 33
1977 15
1978 17
1979 37
1980 13
1981 22
1982 22
1983 9
1984 15
1985 7
1986 9
1987 7
1988 8
1989 5
1990 2
1991 1
1992 2
1993 4
1994 4
1995 2
1996 2
1997 2
1999 2
2000 6
2001 7
2002 1
2003 4
2005 3
2006 5
2007 4
2008 2
2010 1
2013 2
2014 2
2017 1
2018 1
2019 1
2020 1
Text availability
Article attribute
Article type
Publication date

Search Results

392 results
Results by year
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