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Results by year

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

Year Number of Results
1948 4
1949 5
1963 2
1964 7
1965 75
1966 187
1967 362
1968 329
1969 326
1970 322
1971 390
1972 337
1973 350
1974 363
1975 372
1976 390
1977 438
1978 504
1979 503
1980 453
1981 420
1982 482
1983 564
1984 662
1985 702
1986 692
1987 735
1988 872
1989 909
1990 859
1991 823
1992 849
1993 942
1994 965
1995 997
1996 1109
1997 992
1998 972
1999 1228
2000 1585
2001 1510
2002 1463
2003 1540
2004 1731
2005 2060
2006 2458
2007 2633
2008 2635
2009 3070
2010 3195
2011 3093
2012 3374
2013 3730
2014 4534
2015 4570
2016 3966
2017 3955
2018 3449
2019 1319
2020 18
Text availability
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Article type
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69,241 results
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