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Results by year

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

Year Number of Results
1962 1
1964 1
1968 1
1969 2
1970 1
1971 2
1972 1
1973 1
1974 1
1975 4
1976 3
1977 5
1979 2
1980 7
1981 3
1982 1
1983 3
1984 3
1985 2
1986 3
1988 3
1989 8
1990 3
1993 2
1994 1
1995 7
1996 5
1997 3
1998 4
1999 5
2000 3
2001 6
2002 1
2003 3
2004 2
2005 10
2006 9
2007 16
2008 13
2009 15
2010 19
2011 22
2012 12
2013 12
2014 10
2015 11
2016 4
2017 14
2018 10
2019 5
2020 0
Text availability
Article attribute
Article type
Publication date

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263 results
Results by year
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