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Results by year

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

Year Number of Results
1969 1
1971 1
1972 2
1974 4
1975 3
1976 3
1977 1
1978 6
1979 5
1980 13
1981 2
1982 11
1983 4
1984 6
1985 5
1986 13
1987 5
1988 5
1989 11
1990 5
1991 1
1992 2
1993 1
1994 4
1995 3
1996 6
1998 9
1999 6
2000 6
2001 9
2002 12
2003 4
2004 11
2005 13
2006 11
2007 8
2008 5
2009 4
2010 2
2012 3
2013 1
2014 4
2015 4
2016 5
2017 6
2018 3
2019 7
2020 4
2021 1
Text availability
Article attribute
Article type
Publication date

Search Results

255 results
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