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

Year Number of Results
1948 2
1949 1
1964 4
1965 38
1966 90
1967 115
1968 144
1969 162
1970 194
1971 213
1972 208
1973 258
1974 288
1975 262
1976 261
1977 292
1978 310
1979 352
1980 370
1981 386
1982 417
1983 511
1984 561
1985 714
1986 721
1987 753
1988 831
1989 950
1990 1001
1991 1066
1992 1136
1993 1102
1994 1251
1995 1374
1996 1344
1997 1406
1998 1609
1999 1671
2000 1810
2001 1812
2002 2009
2003 2196
2004 2396
2005 2659
2006 2772
2007 3177
2008 3294
2009 3522
2010 4041
2011 4274
2012 4517
2013 4869
2014 5491
2015 5614
2016 5358
2017 5202
2018 5183
2019 2750
2020 64
Text availability
Article attribute
Article type
Publication date

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87,752 results
Results by year
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