1971 1975 1976a 1976b
1977





1978 1979a 1979b 1980* 1981




1982a 1982b 1984a 1984b 1984c
1988 1992 1993 1994 1995





1997 1998 1999 2000 2001a





2001b 2004
2005a 2005b 2006





2007 2008 2013 2016
2018
2019