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

Year Number of Results
1999 5
2000 2
2001 6
2002 9
2003 10
2004 12
2005 16
2006 37
2007 43
2008 58
2009 47
2010 59
2011 84
2012 127
2013 97
2014 142
2015 175
2016 167
2017 133
2018 100
2019 97
2020 38
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Publication date

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