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Results by year

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

Year Number of Results
1956 1
1959 7
1960 3
1961 1
1962 4
1963 4
1964 3
1965 7
1966 3
1967 3
1968 8
1969 3
1970 3
1971 1
1972 5
1973 9
1974 10
1975 10
1976 10
1977 10
1978 11
1979 11
1980 24
1981 34
1982 29
1983 25
1984 33
1985 42
1986 52
1987 64
1988 73
1989 78
1990 74
1991 86
1992 114
1993 120
1994 166
1995 173
1996 179
1997 226
1998 229
1999 303
2000 356
2001 425
2002 501
2003 647
2004 780
2005 1021
2006 1238
2007 1362
2008 1578
2009 1913
2010 2137
2011 2539
2012 2954
2013 3566
2014 4002
2015 4501
2016 4787
2017 5326
2018 5864
2019 6942
2020 8027
2021 1877
Text availability
Article attribute
Article type
Publication date

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57,946 results
Results by year
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