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

Year Number of Results
1946 2
1950 1
1951 2
1952 1
1953 3
1954 4
1955 2
1956 6
1957 3
1958 4
1959 4
1960 4
1961 6
1962 3
1963 12
1964 4
1965 4
1969 1
1972 3
1973 19
1974 39
1975 67
1976 55
1977 49
1978 27
1979 41
1980 38
1981 36
1982 26
1983 27
1984 30
1985 28
1986 31
1987 38
1988 43
1989 39
1990 83
1991 88
1992 93
1993 85
1994 84
1995 116
1996 106
1997 118
1998 128
1999 114
2000 158
2001 169
2002 176
2003 162
2004 146
2005 151
2006 148
2007 181
2008 199
2009 247
2010 339
2011 394
2012 450
2013 468
2014 381
2015 384
2016 373
2017 347
2018 308
2019 251
2020 37
Text availability
Article attribute
Article type
Publication date

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6,344 results
Results by year
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