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Results by year

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

Year Number of Results
1959 1
1962 1
1963 1
1964 1
1966 1
1969 1
1970 1
1972 2
1973 2
1976 1
1979 1
1982 1
1983 1
1984 3
1986 1
1988 1
1989 1
1991 2
1992 1
1993 1
1994 2
1996 2
1997 2
1998 3
1999 6
2000 8
2001 9
2002 4
2003 17
2004 29
2005 40
2006 28
2007 43
2008 72
2009 64
2010 63
2011 87
2012 110
2013 103
2014 106
2015 132
2016 138
2017 130
2018 153
2019 151
2020 181
2021 57
Text availability
Article attribute
Article type
Publication date

Search Results

1,568 results
Results by year
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