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

Year Number of Results
1987 1
1988 1
1989 3
1991 1
1992 1
1993 1
1994 3
1995 3
1996 1
1997 1
1998 1
1999 1
2001 1
2002 4
2003 1
2004 11
2005 5
2006 5
2007 8
2008 18
2009 7
2010 16
2011 13
2012 12
2013 18
2014 16
2015 11
2016 10
2017 4
2018 7
2019 13
2020 9
2021 3
Text availability
Article attribute
Article type
Publication date

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183 results
Results by year
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183 results
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