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Results by year

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

Year Number of Results
1950 1
1961 1
1963 1
1964 1
1965 2
1966 3
1968 3
1969 6
1970 5
1971 6
1972 10
1973 14
1974 10
1975 11
1976 11
1977 17
1978 8
1979 15
1980 9
1981 14
1982 22
1983 19
1984 16
1985 17
1986 16
1987 21
1988 26
1989 26
1990 26
1991 37
1992 32
1993 58
1994 66
1995 84
1996 77
1997 63
1998 56
1999 60
2000 75
2001 85
2002 90
2003 111
2004 101
2005 109
2006 113
2007 105
2008 117
2009 125
2010 138
2011 153
2012 190
2013 207
2014 244
2015 291
2016 250
2017 294
2018 280
2019 276
2020 53
Text availability
Article attribute
Article type
Publication date

Search Results

3,882 results
Results by year
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