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Results by year

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

Year Number of Results
1960 1
1961 1
1962 1
1963 1
1964 1
1972 2
1975 1
1976 2
1979 1
1981 1
1982 3
1985 2
1986 3
1987 3
1988 4
1989 4
1990 5
1991 6
1992 1
1993 2
1994 9
1995 7
1996 9
1997 4
1998 2
1999 2
2000 8
2001 14
2002 14
2003 11
2004 18
2005 35
2006 25
2007 31
2008 44
2009 44
2010 44
2011 46
2012 54
2013 62
2014 76
2015 58
2016 81
2017 87
2018 75
2019 54
2020 80
2021 92
2022 77
Text availability
Article attribute
Article type
Publication date

Search Results

1,117 results
Results by year
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1,117 results