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Results by year

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

Year Number of Results
1965 1
1969 2
1971 2
1973 1
1974 6
1975 2
1976 2
1977 8
1978 2
1980 3
1981 4
1982 5
1983 2
1984 1
1985 3
1986 5
1987 3
1988 12
1989 19
1990 12
1991 16
1992 18
1993 21
1994 12
1995 9
1996 5
1997 2
1998 8
1999 10
2000 5
2001 9
2002 7
2003 8
2004 6
2005 9
2006 4
2007 8
2008 7
2009 12
2010 12
2011 11
2012 10
2013 11
2014 17
2015 11
2016 7
2017 13
2018 16
2019 10
2020 3
Text availability
Article attribute
Article type
Publication date

Search Results

373 results
Results by year
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