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Results by year

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

Year Number of Results
1975 3
1976 10
1977 13
1978 17
1979 19
1980 30
1981 48
1982 37
1983 34
1984 40
1985 59
1986 54
1987 47
1988 56
1989 54
1990 38
1991 45
1992 58
1993 38
1994 44
1995 48
1996 58
1997 61
1998 88
1999 103
2000 113
2001 120
2002 109
2003 150
2004 132
2005 138
2006 162
2007 191
2008 170
2009 163
2010 191
2011 188
2012 180
2013 151
2014 116
2015 118
2016 90
2017 83
2018 73
2019 25
2020 0
Text availability
Article attribute
Article type
Publication date

Search Results

3,466 results
Results by year
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