œ1966-69[êt–¾Šú•Ò]
œ1969-75[—h—•Šú•Ò]
œ1975-81[–ô“®Šú•Ò]
œ1981-89[Šg[Šú•Ò]
œ1989-96[Š®nŠú•Ò]

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