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   2018 (1 publications)    2017 (75 publications)    2016 (4050 publications)
   2015 (5348 publications)    2014 (5310 publications)    2013 (4943 publications)
   2012 (5104 publications)    2011 (4767 publications)    2010 (5099 publications)
   2009 (4955 publications)    2008 (5166 publications)    2007 (5387 publications)
   2006 (5587 publications)    2005 (5691 publications)    2004 (5174 publications)
   2003 (4938 publications)    2002 (4673 publications)    2001 (4205 publications)
   2000 (3828 publications)    1999 (3424 publications)    1998 (891 publications)
   1997 (679 publications)    1996 (623 publications)    1995 (496 publications)
   1994 (456 publications)    1993 (399 publications)    1992 (359 publications)
   1991 (314 publications)    1990 (292 publications)    1989 (236 publications)
   1988 (203 publications)    1987 (190 publications)    1986 (180 publications)
   1985 (151 publications)    1984 (98 publications)    1983 (121 publications)
   1982 (92 publications)    1981 (76 publications)    1980 (69 publications)
   1979 (54 publications)    1978 (55 publications)    1977 (56 publications)
   1976 (36 publications)    1975 (38 publications)    1974 (20 publications)
   1973 (31 publications)    1972 (27 publications)    1971 (26 publications)
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