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Results by year

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

Year Number of Results
1947 2
1948 1
1951 1
1952 1
1953 1
1954 2
1955 1
1957 1
1958 5
1959 6
1960 6
1961 7
1962 3
1965 5
1966 25
1967 23
1968 31
1969 44
1970 48
1971 38
1972 46
1973 46
1974 67
1975 73
1976 52
1977 57
1978 53
1979 37
1980 63
1981 52
1982 52
1983 76
1984 78
1985 92
1986 86
1987 90
1988 86
1989 97
1990 107
1991 120
1992 123
1993 119
1994 167
1995 222
1996 189
1997 182
1998 153
1999 168
2000 179
2001 154
2002 169
2003 195
2004 193
2005 229
2006 248
2007 279
2008 262
2009 321
2010 315
2011 327
2012 327
2013 342
2014 331
2015 383
2016 324
2017 314
2018 316
2019 181
2020 0
Text availability
Article attribute
Article type
Publication date

Search Results

7,692 results
Results by year
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