| | | | | | | | | | | | | | | 1970 5 | 1988 8 | | | | 1988 8 —1994 8 | 1992 9—1994 8 | | | 1994 8 — 1994 12 | | 1995 1 — 2002 10 | | 2002 10 2003 10 | （1998 4 | | 2003 11 — 2020 5 | | | 2020 5 — | | | |