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Results by year

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

Year Number of Results
1951 4
1952 2
1953 1
1954 6
1955 12
1956 6
1957 3
1958 23
1959 13
1960 9
1961 14
1962 16
1963 24
1964 18
1965 28
1966 33
1967 32
1968 35
1969 42
1970 43
1971 61
1972 50
1973 49
1974 48
1975 48
1976 48
1977 71
1978 59
1979 77
1980 75
1981 67
1982 89
1983 78
1984 81
1985 78
1986 105
1987 110
1988 123
1989 134
1990 121
1991 121
1992 142
1993 133
1994 124
1995 118
1996 131
1997 171
1998 159
1999 173
2000 227
2001 238
2002 213
2003 257
2004 270
2005 294
2006 294
2007 313
2008 319
2009 371
2010 383
2011 439
2012 441
2013 459
2014 421
2015 454
2016 449
2017 448
2018 470
2019 448
2020 94
Text availability
Article attribute
Article type
Publication date

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9,666 results
Results by year
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