| | | | | | | | | | | 1970 12 | 1996 7 | | 1989 . 09 1993 . 07 | | | 1993 . 09 1996 . 06 | | | 1996 . 07 1999 . 12 | | 2000 . 1 2003 . 12 | | | 2004 . 1 2010 . 10 | | | | 2001 . 09 2005 . 06 | | | 2010 . 11 2016 . 06 | | | | | 2016 . 07 2021 . 08 | | | | | 2021 . 08 | | | |