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Results by year

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

Year Number of Results
1928 1
1948 2
1949 1
1955 1
1957 1
1958 1
1959 5
1960 4
1961 3
1962 4
1963 9
1964 8
1965 10
1966 2
1967 4
1968 5
1969 1
1970 5
1971 3
1972 4
1973 11
1974 2
1975 5
1976 5
1977 7
1978 10
1979 16
1980 19
1981 46
1982 45
1983 52
1984 56
1985 77
1986 87
1987 106
1988 123
1989 130
1990 163
1991 215
1992 251
1993 270
1994 339
1995 362
1996 395
1997 422
1998 491
1999 575
2000 735
2001 813
2002 1025
2003 1377
2004 1672
2005 2218
2006 2526
2007 2976
2008 3400
2009 4048
2010 5032
2011 5895
2012 6882
2013 8222
2014 9351
2015 10723
2016 11685
2017 12713
2018 14596
2019 17079
2020 16837
2021 23
Text availability
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Article type
Publication date

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