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Results by year

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

Year Number of Results
1958 1
1959 2
1961 2
1962 3
1963 1
1964 3
1965 2
1966 2
1967 2
1968 3
1970 1
1971 3
1972 1
1973 3
1975 1
1976 1
1977 8
1978 2
1979 7
1980 3
1981 1
1982 3
1983 9
1984 2
1985 2
1986 6
1987 3
1988 7
1989 6
1990 6
1991 7
1992 9
1993 6
1994 10
1995 11
1996 11
1997 19
1998 30
1999 30
2000 55
2001 52
2002 67
2003 60
2004 69
2005 96
2006 129
2007 169
2008 141
2009 147
2010 146
2011 186
2012 195
2013 211
2014 240
2015 207
2016 223
2017 241
2018 220
2019 230
2020 269
2021 181
Text availability
Article attribute
Article type
Publication date

Search Results

3,324 results
Results by year
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