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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
1957 2
1958 3
1960 2
1961 4
1962 6
1963 7
1964 1
1965 7
1966 3
1968 1
1969 2
1970 1
1971 8
1972 4
1973 6
1974 5
1975 9
1976 8
1977 11
1978 12
1979 12
1980 18
1981 20
1982 18
1983 22
1984 40
1985 34
1986 32
1987 49
1988 46
1989 56
1990 56
1991 66
1992 89
1993 95
1994 88
1995 98
1996 124
1997 124
1998 128
1999 148
2000 203
2001 235
2002 309
2003 361
2004 454
2005 501
2006 595
2007 677
2008 772
2009 843
2010 1041
2011 1233
2012 1404
2013 1593
2014 1837
2015 1879
2016 2001
2017 2172
2018 2362
2019 2825
2020 601
Text availability
Article attribute
Article type
Publication date

Search Results

22,760 results
Results by year
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