1950 5 | 1968 9 1971 12 | | | | | | | | | 1968 1972 | | 1972 1973 | | 1973 1975 | | | 1975 1983 | | 1983 1987 | | 1987 1990 | | 1990 1993 | | | 1993 1995 | | 1995 1998 | 1995.08 | 1996.03 | 1996.9 1996.11 | | 1998 2000 | | 2000 2004 | | 2004 2005 | | 2005 2007 | | 2001 2006 | | | 2007 2013 | | 2013 2017 | | | 2014.02 | | | 2017 | | | | | | | | | | |