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Results by year

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

Year Number of Results
1979 1
1980 1
1981 2
1982 2
1984 3
1985 1
1987 1
1988 1
1989 2
1990 2
1991 1
1993 3
1994 3
1995 4
1996 4
1998 2
1999 3
2000 5
2001 4
2002 7
2003 4
2004 6
2005 10
2006 12
2007 9
2008 8
2009 13
2010 14
2011 8
2012 8
2013 11
2014 9
2015 14
2016 10
2017 10
2018 8
2019 18
2020 20
2021 6
Text availability
Article attribute
Article type
Publication date

Search Results

228 results
Results by year
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228 results
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