| | | | 1960 3 | | 1983 7 1986 | 3 | 1983 7 1987 1 | ; | 1987 1 1990 2 | ; | 1990 2 1991 10 | ; | 1991 10 1992 4 | | 1992 4 1995 10 | | | ; | 1995 10 1996 1 | | 1996 1 1997 4 | | 1997 4 1998 11 | | | 1998 11 2003 7 | | | 2003 7 | | |