| | | | | | 1969 2 | 1987 7 | 1991 8 | | 1987.09 1991.07 | | 1991.08 1996.11 | 1996.10 | 1996.11 2011.04 ( ) | 1999.04 | 2002.06 2010.03 | | 2011.04 2016.07 | | 2016.07 2016.10 | | 2016.10 2017.06 | | | 2017.06 2017.12 | | 2017.12 2018.01 | | 2018.01 2021.06 | | 2021.06 | |