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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 1
1953 1
1956 2
1957 2
1958 3
1959 3
1960 4
1961 1
1962 3
1963 3
1964 2
1965 1
1966 4
1968 4
1969 6
1970 1
1971 8
1972 9
1973 7
1974 9
1975 11
1976 8
1977 9
1978 10
1979 9
1980 14
1981 18
1982 18
1983 20
1984 14
1985 20
1986 17
1987 23
1988 37
1989 23
1990 35
1991 40
1992 50
1993 62
1994 70
1995 93
1996 109
1997 132
1998 136
1999 131
2000 157
2001 180
2002 187
2003 285
2004 318
2005 408
2006 460
2007 464
2008 603
2009 635
2010 780
2011 932
2012 1099
2013 1300
2014 1449
2015 1614
2016 1714
2017 1873
2018 2107
2019 2318
2020 2773
2021 1143
Text availability
Article attribute
Article type
Publication date

Search Results

21,549 results
Results by year
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