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

Year Number of Results
1976 334
1977 399
1978 402
1979 433
1980 421
1981 459
1982 495
1983 592
1984 530
1985 598
1986 530
1987 562
1988 600
1989 594
1990 672
1991 635
1992 690
1993 724
1994 736
1995 798
1996 804
1997 821
1998 841
1999 877
2000 860
2001 831
2002 876
2003 1014
2004 1002
2005 1195
2006 1254
2007 1230
2008 1193
2009 1210
2010 1285
2011 1352
2012 1352
2013 1168
2014 986
2015 1028
2016 726
2017 603
2018 644
2019 576
2020 156
Text availability
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33,113 results
Results by year
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