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

Year Number of Results
1969 1
1970 1
1972 2
1973 3
1976 1
1979 1
1982 2
1987 2
1990 3
1991 6
1992 2
1993 2
1994 7
1995 12
1996 3
1997 14
1998 6
1999 6
2000 2
2001 6
2002 1
2003 1
2004 3
2005 6
2006 6
2007 9
2008 17
2009 19
2010 21
2011 24
2012 19
2013 44
2014 66
2015 84
2016 77
2017 74
2018 92
2019 82
2020 128
2021 82
Text availability
Article attribute
Article type
Publication date

Search Results

802 results
Results by year
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802 results
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