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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
1977 1
1978 1
1979 3
1980 1
1981 2
1982 4
1983 2
1985 1
1987 6
1988 4
1989 1
1990 2
1991 1
1993 1
1994 2
1995 3
1996 2
1997 2
1998 2
1999 4
2000 3
2001 6
2002 5
2003 2
2004 7
2005 9
2006 14
2007 12
2008 11
2009 6
2010 13
2011 6
2012 9
2013 10
2014 7
2015 7
2016 6
2017 17
2018 12
2019 15
2020 4
Text availability
Article attribute
Article type
Publication date

Search Results

197 results
Results by year
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