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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
1965 1
1966 1
1967 1
1969 1
1970 5
1971 1
1972 3
1973 2
1974 2
1975 7
1976 4
1977 1
1978 5
1979 4
1980 6
1981 5
1982 3
1983 2
1984 1
1986 1
1988 2
1989 3
1991 3
1992 6
1993 8
1994 6
1995 11
1996 7
1997 7
1998 6
1999 8
2000 6
2001 9
2002 14
2003 12
2004 14
2005 21
2006 16
2007 19
2008 17
2009 17
2010 19
2011 26
2012 30
2013 24
2014 25
2015 20
2016 25
2017 20
2018 16
2019 23
2020 6
Text availability
Article attribute
Article type
Publication date

Search Results

465 results
Results by year
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