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Results by year

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

Year Number of Results
1963 2
1964 2
1967 1
1968 1
1970 3
1971 1
1973 2
1974 3
1975 1
1976 1
1977 1
1978 1
1979 1
1980 4
1981 2
1983 4
1984 7
1985 1
1986 4
1987 8
1988 6
1989 3
1990 10
1991 9
1992 14
1993 7
1994 4
1995 10
1996 7
1997 12
1998 13
1999 9
2000 8
2001 8
2002 12
2003 8
2004 10
2005 18
2006 15
2007 25
2008 35
2009 29
2010 26
2011 41
2012 39
2013 32
2014 33
2015 39
2016 37
2017 35
2018 38
2019 48
2020 13
Text availability
Article attribute
Article type
Publication date

Search Results

641 results
Results by year
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