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Results by year

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

Year Number of Results
1951 1
1953 1
1954 1
1956 3
1957 1
1959 2
1960 1
1961 2
1963 2
1964 2
1965 1
1967 2
1968 7
1969 3
1970 3
1971 9
1972 8
1973 2
1974 4
1975 8
1976 5
1977 8
1978 9
1979 12
1980 5
1981 4
1982 5
1983 6
1984 8
1985 7
1986 8
1987 12
1988 15
1989 13
1990 21
1991 20
1992 14
1993 20
1994 24
1995 28
1996 41
1997 38
1998 39
1999 50
2000 54
2001 63
2002 69
2003 80
2004 76
2005 88
2006 86
2007 105
2008 151
2009 199
2010 235
2011 261
2012 257
2013 253
2014 286
2015 292
2016 327
2017 312
2018 275
2019 323
2020 44
Text availability
Article attribute
Article type
Publication date

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3,879 results
Results by year
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