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Results by year

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

Year Number of Results
1952 1
1963 1
1964 1
1966 1
1967 1
1971 3
1972 1
1973 2
1975 2
1976 2
1977 2
1978 6
1980 1
1981 3
1982 1
1983 1
1984 1
1986 2
1987 2
1988 1
1989 4
1990 4
1991 2
1994 1
1995 2
1996 4
1997 2
1998 8
1999 8
2000 6
2001 5
2002 11
2003 11
2004 14
2005 14
2006 8
2007 11
2008 14
2009 20
2010 12
2011 18
2012 18
2013 16
2014 12
2015 11
2016 14
2017 13
2018 14
2019 19
2020 2
Text availability
Article attribute
Article type
Publication date

Search Results

305 results
Results by year
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