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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 3
1993 1
1994 2
1996 5
1997 6
1998 7
1999 5
2000 6
2001 7
2002 4
2003 5
2004 3
2005 5
2006 12
2007 9
2008 7
2009 6
2010 11
2011 10
2012 8
2013 15
2014 13
2015 15
2016 10
2017 14
2018 11
2019 17
2020 18
2021 20
2022 7
Text availability
Article attribute
Article type
Publication date

Search Results

234 results
Results by year
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234 results