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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 1
1966 1
1968 2
1971 1
1972 2
1973 2
1974 1
1976 1
1977 1
1979 1
1981 1
1982 2
1986 1
1987 2
1988 3
1989 5
1990 1
1991 2
1992 4
1993 2
1994 2
1995 3
1996 7
1997 3
1998 4
1999 4
2000 3
2001 13
2002 7
2003 6
2004 7
2005 4
2006 9
2007 4
2008 10
2009 12
2010 11
2011 16
2012 20
2013 15
2014 12
2015 15
2016 18
2017 17
2018 18
2019 10
2020 4
Text availability
Article attribute
Article type
Publication date

Search Results

271 results
Results by year
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