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Results by year

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

Year Number of Results
1955 1
1963 1
1969 1
1970 1
1972 1
1973 1
1974 2
1975 7
1976 3
1977 4
1978 1
1979 5
1980 10
1981 6
1982 4
1983 15
1984 11
1985 8
1986 22
1987 21
1988 24
1989 24
1990 38
1991 24
1992 45
1993 55
1994 52
1995 67
1996 56
1997 56
1998 61
1999 72
2000 84
2001 110
2002 147
2003 188
2004 233
2005 293
2006 291
2007 363
2008 388
2009 426
2010 507
2011 616
2012 760
2013 942
2014 1058
2015 1194
2016 1227
2017 1329
2018 1582
2019 1842
2020 2199
2021 2610
2022 3018
2023 3086
2024 1474

Text availability

Article attribute

Article type

Publication date

Search Results

23,756 results

Results by year

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