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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 1
1948 2
1951 1
1952 6
1953 21
1954 14
1955 9
1956 14
1957 14
1958 14
1959 2
1963 3
1964 1
1965 21
1966 37
1967 35
1968 31
1969 38
1970 52
1971 60
1972 51
1973 74
1974 69
1975 69
1976 66
1977 76
1978 100
1979 165
1980 173
1981 150
1982 169
1983 196
1984 186
1985 190
1986 232
1987 211
1988 268
1989 246
1990 296
1991 281
1992 252
1993 215
1994 233
1995 243
1996 233
1997 241
1998 257
1999 244
2000 258
2001 317
2002 316
2003 337
2004 286
2005 312
2006 346
2007 438
2008 442
2009 432
2010 457
2011 526
2012 608
2013 646
2014 627
2015 560
2016 577
2017 572
2018 568
2019 276
2020 4
Text availability
Article attribute
Article type
Publication date

Search Results

13,521 results
Results by year
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