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

Year Number of Results
1989 1
1990 2
1991 4
1992 1
1993 1
1997 1
1998 2
1999 6
2000 11
2001 4
2002 6
2003 7
2004 4
2005 14
2006 14
2007 16
2008 18
2009 15
2010 16
2011 16
2012 8
2013 10
2014 11
2015 4
2016 13
2017 15
2018 22
2019 18
2020 13
2021 7
Text availability
Article attribute
Article type
Publication date

Search Results

248 results
Results by year
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248 results
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