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Results by year

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

Year Number of Results
1970 1
1974 1
1979 1
1980 1
1986 1
1987 1
1988 6
1989 22
1990 101
1991 255
1992 402
1993 460
1994 476
1995 434
1996 295
1997 333
1998 294
1999 382
2000 364
2001 285
2002 362
2003 350
2004 397
2005 378
2006 363
2007 410
2008 407
2009 439
2010 473
2011 468
2012 424
2013 434
2014 413
2015 414
2016 384
2017 408
2018 386
2019 220
2020 6
Text availability
Article attribute
Article type
Publication date

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10,567 results
Results by year
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