????:1???????:??????????

2?????????50??

3??????????

4????????

5??????????

????????1?6???? ???,??????????,??

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??????????????,???,???,1966?7????,?,????????????1986?????7?,1986?6??

1986?????????7??1987?10?,??;

1987???10?1998???????6??,?,??????????????????????;

1998??6??????????2005???????????????9?????,???????,??,????;

2005?9????????????2013?12?,?????????????????????????????????,??;

2013???12?2018?11???????????,????????????????????;

2018??????11??,????,??????????? ??:?????????????