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

Year Number of Results
1989 1
1991 1
1993 1
1999 1
2000 1
2002 8
2003 5
2004 5
2005 2
2006 7
2007 10
2008 20
2009 26
2010 37
2011 46
2012 47
2013 56
2014 87
2015 98
2016 105
2017 106
2018 135
2019 158
2020 204
2021 236
2022 121
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Publication date

Search Results

1,345 results
Results by year
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1,345 results