| | | | | | | | | | 1968 2 | 1993 6 1988 | 9 | | | 1988.09 1995.12 | | 1995.12 2001.09 | 1998.08 | 2001.09 2003.12 | 2002.08 2003.11 | | 2003.12 2012.11 | | 2012.11 2016.05 | | 2016.05 2019.02 | | 2019.02 2021.07 | | 2021.07 2022.01 | | | 2022.01 | | | | | |