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Results by year

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

Year Number of Results
1972 1
1973 2
1976 1
1980 4
1981 4
1983 6
1984 5
1985 3
1986 3
1988 6
1989 1
1990 6
1991 3
1992 8
1993 12
1994 8
1995 6
1996 9
1997 4
1998 5
1999 10
2000 9
2001 9
2002 10
2003 4
2005 6
2006 8
2007 15
2008 15
2009 14
2010 17
2011 15
2012 18
2013 19
2014 10
2015 7
2016 11
2017 9
2018 12
2019 12
2020 3
Text availability
Article attribute
Article type
Publication date

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303 results
Results by year
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