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Results by year

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

Year Number of Results
1955 1
1958 1
1959 1
1960 3
1961 2
1962 1
1964 4
1965 21
1966 30
1967 44
1968 53
1969 74
1970 88
1971 102
1972 116
1973 131
1974 172
1975 146
1976 169
1977 172
1978 246
1979 172
1980 199
1981 177
1982 185
1983 182
1984 150
1985 161
1986 131
1987 143
1988 136
1989 150
1990 157
1991 179
1992 160
1993 173
1994 145
1995 167
1996 182
1997 212
1998 246
1999 292
2000 326
2001 454
2002 556
2003 673
2004 820
2005 975
2006 1108
2007 1373
2008 1382
2009 1660
2010 1959
2011 2087
2012 2276
2013 2272
2014 2209
2015 2175
2016 2202
2017 2046
2018 1828
2019 868
2020 17
Text availability
Article attribute
Article type
Publication date

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31,478 results
Results by year
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