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Results by year

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

Year Number of Results
1947 1
1968 1
1969 2
1970 2
1971 2
1972 3
1974 1
1975 2
1977 1
1978 1
1979 1
1981 2
1982 3
1983 1
1984 2
1985 2
1986 2
1987 1
1988 6
1989 7
1990 5
1991 6
1992 7
1993 8
1994 9
1995 12
1996 5
1997 7
1998 4
1999 11
2000 4
2001 4
2002 7
2003 10
2004 6
2005 9
2006 17
2007 12
2008 7
2009 11
2010 10
2011 10
2012 6
2013 11
2014 12
2015 17
2016 7
2017 4
2018 10
2019 12
2020 14
2021 8
Text availability
Article attribute
Article type
Publication date

Search Results

297 results
Results by year
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297 results
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