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Results by year

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

Year Number of Results
1952 2
1964 2
1966 1
1968 1
1971 1
1972 1
1974 3
1975 5
1976 1
1977 2
1978 3
1979 8
1980 6
1981 6
1982 2
1983 3
1984 9
1985 2
1986 3
1987 7
1988 7
1989 8
1990 7
1991 10
1992 12
1993 7
1994 10
1995 17
1996 12
1997 7
1998 17
1999 10
2000 10
2001 15
2002 15
2003 19
2004 28
2005 36
2006 37
2007 38
2008 38
2009 67
2010 75
2011 76
2012 101
2013 126
2014 166
2015 162
2016 177
2017 212
2018 230
2019 312
2020 65
Text availability
Article attribute
Article type
Publication date

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1,991 results
Results by year
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