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

Year Number of Results
1939 1
1940 1
1941 2
1942 1
1943 2
1945 1
1946 1
1947 3
1948 2
1949 2
1951 1
1953 2
1956 1
1957 4
1958 3
1959 12
1960 9
1961 5
1962 8
1963 16
1964 22
1965 19
1966 10
1967 5
1968 6
1969 5
1970 4
1971 7
1972 12
1973 8
1974 11
1975 7
1976 6
1977 11
1978 13
1979 32
1980 33
1981 46
1982 60
1983 71
1984 90
1985 151
1986 111
1987 150
1988 184
1989 195
1990 241
1991 266
1992 287
1993 390
1994 425
1995 477
1996 556
1997 619
1998 625
1999 737
2000 902
2001 1002
2002 1222
2003 1588
2004 2052
2005 2622
2006 3208
2007 3616
2008 4424
2009 5288
2010 6134
2011 7179
2012 8554
2013 10235
2014 11998
2015 13484
2016 14206
2017 15993
2018 18488
2019 21517
2020 4581
Text availability
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Article type
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146,988 results
Results by year
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